Update dependencies for 5.6 (#24)

2018-12-17 08:28:01 +01:00 · 2018-12-17 08:28:01 +01:00 · 415e8b5f72
commit 415e8b5f72
parent 76ba0b57a7
41 changed files with 3499 additions and 1746 deletions
--- a/build/manifest/Gopkg.lock
+++ b/build/manifest/Gopkg.lock
@ -1,6 +1,14 @@
 # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.


+[[projects]]
+  digest = "1:705c40022f5c03bf96ffeb6477858d88565064485a513abcd0f11a0911546cb6"
+  name = "github.com/blang/semver"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "2ee87856327ba09384cabd113bc6b5d174e9ec0f"
+  version = "v3.5.1"
+
 [[projects]]
  branch = "master"
  digest = "1:bc36a17a513f15717b5fa3dcfd666f5ddb6fd3db06f5f2834ac2f5979d4f5070"
@ -10,7 +18,7 @@
  revision = "5ed622c449da6d44c3c8329331ff47a9e5844f71"

 [[projects]]
-  digest = "1:771649e04a49766e04f498731699e62874ffa2439a071294fde36d61b2db0685"
+  digest = "1:1cebd7208d10c6f20d5fd71c9c7062fea74524842db93fec2993fb5ea4975c73"
  name = "github.com/mattermost/mattermost-server"
  packages = [
    "mlog",
@ -19,8 +27,8 @@
    "utils/markdown",
  ]
  pruneopts = "UT"
-  revision = "d5b613cb1bbdaa856fa126e7102d94783b9e80b6"
-  version = "v5.4.0"
+  revision = "0c1207215852a8726c3f09dea157d597fec368df"
+  version = "v5.6.0"

 [[projects]]
  digest = "1:07140002dbf37da92090f731b46fa47be4820b82fe5c14a035203b0e813d0ec2"
--- a/build/manifest/Gopkg.toml
+++ b/build/manifest/Gopkg.toml
@ -4,7 +4,7 @@

 [[constraint]]
  name = "github.com/mattermost/mattermost-server"
-  version = "~5.4.0"
+  version = "~5.6.0"

 [[constraint]]
  name = "github.com/pkg/errors"
--- a/build/manifest/vendor/github.com/blang/semver/.travis.yml
+++ b/build/manifest/vendor/github.com/blang/semver/.travis.yml
@ -0,0 +1,21 @@
+language: go
+matrix:
+  include:
+  - go: 1.4.3
+  - go: 1.5.4
+  - go: 1.6.3
+  - go: 1.7
+  - go: tip
+  allow_failures:
+  - go: tip
+install:
+- go get golang.org/x/tools/cmd/cover
+- go get github.com/mattn/goveralls
+script:
+- echo "Test and track coverage" ; $HOME/gopath/bin/goveralls -package "." -service=travis-ci
+  -repotoken $COVERALLS_TOKEN
+- echo "Build examples" ; cd examples && go build
+- echo "Check if gofmt'd" ; diff -u <(echo -n) <(gofmt -d -s .)
+env:
+  global:
+    secure: HroGEAUQpVq9zX1b1VIkraLiywhGbzvNnTZq2TMxgK7JHP8xqNplAeF1izrR2i4QLL9nsY+9WtYss4QuPvEtZcVHUobw6XnL6radF7jS1LgfYZ9Y7oF+zogZ2I5QUMRLGA7rcxQ05s7mKq3XZQfeqaNts4bms/eZRefWuaFZbkw=
--- a/build/manifest/vendor/github.com/blang/semver/LICENSE
+++ b/build/manifest/vendor/github.com/blang/semver/LICENSE
@ -0,0 +1,22 @@
+The MIT License
+
+Copyright (c) 2014 Benedikt Lang <github at benediktlang.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
--- a/build/manifest/vendor/github.com/blang/semver/README.md
+++ b/build/manifest/vendor/github.com/blang/semver/README.md
@ -0,0 +1,194 @@
+semver for golang [![Build Status](https://travis-ci.org/blang/semver.svg?branch=master)](https://travis-ci.org/blang/semver) [![GoDoc](https://godoc.org/github.com/blang/semver?status.png)](https://godoc.org/github.com/blang/semver) [![Coverage Status](https://img.shields.io/coveralls/blang/semver.svg)](https://coveralls.io/r/blang/semver?branch=master)
+======
+
+semver is a [Semantic Versioning](http://semver.org/) library written in golang. It fully covers spec version `2.0.0`.
+
+Usage
+-----
+```bash
+$ go get github.com/blang/semver
+```
+Note: Always vendor your dependencies or fix on a specific version tag.
+
+```go
+import github.com/blang/semver
+v1, err := semver.Make("1.0.0-beta")
+v2, err := semver.Make("2.0.0-beta")
+v1.Compare(v2)
+```
+
+Also check the [GoDocs](http://godoc.org/github.com/blang/semver).
+
+Why should I use this lib?
+-----
+
+- Fully spec compatible
+- No reflection
+- No regex
+- Fully tested (Coverage >99%)
+- Readable parsing/validation errors
+- Fast (See [Benchmarks](#benchmarks))
+- Only Stdlib
+- Uses values instead of pointers
+- Many features, see below
+
+
+Features
+-----
+
+- Parsing and validation at all levels
+- Comparator-like comparisons
+- Compare Helper Methods
+- InPlace manipulation
+- Ranges `>=1.0.0 <2.0.0 || >=3.0.0 !3.0.1-beta.1`
+- Wildcards `>=1.x`, `<=2.5.x`
+- Sortable (implements sort.Interface)
+- database/sql compatible (sql.Scanner/Valuer)
+- encoding/json compatible (json.Marshaler/Unmarshaler)
+
+Ranges
+------
+
+A `Range` is a set of conditions which specify which versions satisfy the range.
+
+A condition is composed of an operator and a version. The supported operators are:
+
+- `<1.0.0` Less than `1.0.0`
+- `<=1.0.0` Less than or equal to `1.0.0`
+- `>1.0.0` Greater than `1.0.0`
+- `>=1.0.0` Greater than or equal to `1.0.0`
+- `1.0.0`, `=1.0.0`, `==1.0.0` Equal to `1.0.0`
+- `!1.0.0`, `!=1.0.0` Not equal to `1.0.0`. Excludes version `1.0.0`.
+
+Note that spaces between the operator and the version will be gracefully tolerated.
+
+A `Range` can link multiple `Ranges` separated by space:
+
+Ranges can be linked by logical AND:
+
+  - `>1.0.0 <2.0.0` would match between both ranges, so `1.1.1` and `1.8.7` but not `1.0.0` or `2.0.0`
+  - `>1.0.0 <3.0.0 !2.0.3-beta.2` would match every version between `1.0.0` and `3.0.0` except `2.0.3-beta.2`
+
+Ranges can also be linked by logical OR:
+
+  - `<2.0.0 || >=3.0.0` would match `1.x.x` and `3.x.x` but not `2.x.x`
+
+AND has a higher precedence than OR. It's not possible to use brackets.
+
+Ranges can be combined by both AND and OR
+
+  - `>1.0.0 <2.0.0 || >3.0.0 !4.2.1` would match `1.2.3`, `1.9.9`, `3.1.1`, but not `4.2.1`, `2.1.1`
+
+Range usage:
+
+```
+v, err := semver.Parse("1.2.3")
+range, err := semver.ParseRange(">1.0.0 <2.0.0 || >=3.0.0")
+if range(v) {
+    //valid
+}
+
+```
+
+Example
+-----
+
+Have a look at full examples in [examples/main.go](examples/main.go)
+
+```go
+import github.com/blang/semver
+
+v, err := semver.Make("0.0.1-alpha.preview+123.github")
+fmt.Printf("Major: %d\n", v.Major)
+fmt.Printf("Minor: %d\n", v.Minor)
+fmt.Printf("Patch: %d\n", v.Patch)
+fmt.Printf("Pre: %s\n", v.Pre)
+fmt.Printf("Build: %s\n", v.Build)
+
+// Prerelease versions array
+if len(v.Pre) > 0 {
+    fmt.Println("Prerelease versions:")
+    for i, pre := range v.Pre {
+        fmt.Printf("%d: %q\n", i, pre)
+    }
+}
+
+// Build meta data array
+if len(v.Build) > 0 {
+    fmt.Println("Build meta data:")
+    for i, build := range v.Build {
+        fmt.Printf("%d: %q\n", i, build)
+    }
+}
+
+v001, err := semver.Make("0.0.1")
+// Compare using helpers: v.GT(v2), v.LT, v.GTE, v.LTE
+v001.GT(v) == true
+v.LT(v001) == true
+v.GTE(v) == true
+v.LTE(v) == true
+
+// Or use v.Compare(v2) for comparisons (-1, 0, 1):
+v001.Compare(v) == 1
+v.Compare(v001) == -1
+v.Compare(v) == 0
+
+// Manipulate Version in place:
+v.Pre[0], err = semver.NewPRVersion("beta")
+if err != nil {
+    fmt.Printf("Error parsing pre release version: %q", err)
+}
+
+fmt.Println("\nValidate versions:")
+v.Build[0] = "?"
+
+err = v.Validate()
+if err != nil {
+    fmt.Printf("Validation failed: %s\n", err)
+}
+```
+
+
+Benchmarks
+-----
+
+    BenchmarkParseSimple-4           5000000    390    ns/op    48 B/op   1 allocs/op
+    BenchmarkParseComplex-4          1000000   1813    ns/op   256 B/op   7 allocs/op
+    BenchmarkParseAverage-4          1000000   1171    ns/op   163 B/op   4 allocs/op
+    BenchmarkStringSimple-4         20000000    119    ns/op    16 B/op   1 allocs/op
+    BenchmarkStringLarger-4         10000000    206    ns/op    32 B/op   2 allocs/op
+    BenchmarkStringComplex-4         5000000    324    ns/op    80 B/op   3 allocs/op
+    BenchmarkStringAverage-4         5000000    273    ns/op    53 B/op   2 allocs/op
+    BenchmarkValidateSimple-4      200000000      9.33 ns/op     0 B/op   0 allocs/op
+    BenchmarkValidateComplex-4       3000000    469    ns/op     0 B/op   0 allocs/op
+    BenchmarkValidateAverage-4       5000000    256    ns/op     0 B/op   0 allocs/op
+    BenchmarkCompareSimple-4       100000000     11.8  ns/op     0 B/op   0 allocs/op
+    BenchmarkCompareComplex-4       50000000     30.8  ns/op     0 B/op   0 allocs/op
+    BenchmarkCompareAverage-4       30000000     41.5  ns/op     0 B/op   0 allocs/op
+    BenchmarkSort-4                  3000000    419    ns/op   256 B/op   2 allocs/op
+    BenchmarkRangeParseSimple-4      2000000    850    ns/op   192 B/op   5 allocs/op
+    BenchmarkRangeParseAverage-4     1000000   1677    ns/op   400 B/op  10 allocs/op
+    BenchmarkRangeParseComplex-4      300000   5214    ns/op  1440 B/op  30 allocs/op
+    BenchmarkRangeMatchSimple-4     50000000     25.6  ns/op     0 B/op   0 allocs/op
+    BenchmarkRangeMatchAverage-4    30000000     56.4  ns/op     0 B/op   0 allocs/op
+    BenchmarkRangeMatchComplex-4    10000000    153    ns/op     0 B/op   0 allocs/op
+
+See benchmark cases at [semver_test.go](semver_test.go)
+
+
+Motivation
+-----
+
+I simply couldn't find any lib supporting the full spec. Others were just wrong or used reflection and regex which i don't like.
+
+
+Contribution
+-----
+
+Feel free to make a pull request. For bigger changes create a issue first to discuss about it.
+
+
+License
+-----
+
+See [LICENSE](LICENSE) file.
--- a/build/manifest/vendor/github.com/blang/semver/json.go
+++ b/build/manifest/vendor/github.com/blang/semver/json.go
@ -0,0 +1,23 @@
+package semver
+
+import (
+	"encoding/json"
+)
+
+// MarshalJSON implements the encoding/json.Marshaler interface.
+func (v Version) MarshalJSON() ([]byte, error) {
+	return json.Marshal(v.String())
+}
+
+// UnmarshalJSON implements the encoding/json.Unmarshaler interface.
+func (v *Version) UnmarshalJSON(data []byte) (err error) {
+	var versionString string
+
+	if err = json.Unmarshal(data, &versionString); err != nil {
+		return
+	}
+
+	*v, err = Parse(versionString)
+
+	return
+}
--- a/build/manifest/vendor/github.com/blang/semver/package.json
+++ b/build/manifest/vendor/github.com/blang/semver/package.json
@ -0,0 +1,17 @@
+{
+  "author": "blang",
+  "bugs": {
+    "URL": "https://github.com/blang/semver/issues",
+    "url": "https://github.com/blang/semver/issues"
+  },
+  "gx": {
+    "dvcsimport": "github.com/blang/semver"
+  },
+  "gxVersion": "0.10.0",
+  "language": "go",
+  "license": "MIT",
+  "name": "semver",
+  "releaseCmd": "git commit -a -m \"gx publish $VERSION\"",
+  "version": "3.5.1"
+}
+
--- a/build/manifest/vendor/github.com/blang/semver/range.go
+++ b/build/manifest/vendor/github.com/blang/semver/range.go
@ -0,0 +1,416 @@
+package semver
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"unicode"
+)
+
+type wildcardType int
+
+const (
+	noneWildcard  wildcardType = iota
+	majorWildcard wildcardType = 1
+	minorWildcard wildcardType = 2
+	patchWildcard wildcardType = 3
+)
+
+func wildcardTypefromInt(i int) wildcardType {
+	switch i {
+	case 1:
+		return majorWildcard
+	case 2:
+		return minorWildcard
+	case 3:
+		return patchWildcard
+	default:
+		return noneWildcard
+	}
+}
+
+type comparator func(Version, Version) bool
+
+var (
+	compEQ comparator = func(v1 Version, v2 Version) bool {
+		return v1.Compare(v2) == 0
+	}
+	compNE = func(v1 Version, v2 Version) bool {
+		return v1.Compare(v2) != 0
+	}
+	compGT = func(v1 Version, v2 Version) bool {
+		return v1.Compare(v2) == 1
+	}
+	compGE = func(v1 Version, v2 Version) bool {
+		return v1.Compare(v2) >= 0
+	}
+	compLT = func(v1 Version, v2 Version) bool {
+		return v1.Compare(v2) == -1
+	}
+	compLE = func(v1 Version, v2 Version) bool {
+		return v1.Compare(v2) <= 0
+	}
+)
+
+type versionRange struct {
+	v Version
+	c comparator
+}
+
+// rangeFunc creates a Range from the given versionRange.
+func (vr *versionRange) rangeFunc() Range {
+	return Range(func(v Version) bool {
+		return vr.c(v, vr.v)
+	})
+}
+
+// Range represents a range of versions.
+// A Range can be used to check if a Version satisfies it:
+//
+//     range, err := semver.ParseRange(">1.0.0 <2.0.0")
+//     range(semver.MustParse("1.1.1") // returns true
+type Range func(Version) bool
+
+// OR combines the existing Range with another Range using logical OR.
+func (rf Range) OR(f Range) Range {
+	return Range(func(v Version) bool {
+		return rf(v) || f(v)
+	})
+}
+
+// AND combines the existing Range with another Range using logical AND.
+func (rf Range) AND(f Range) Range {
+	return Range(func(v Version) bool {
+		return rf(v) && f(v)
+	})
+}
+
+// ParseRange parses a range and returns a Range.
+// If the range could not be parsed an error is returned.
+//
+// Valid ranges are:
+//   - "<1.0.0"
+//   - "<=1.0.0"
+//   - ">1.0.0"
+//   - ">=1.0.0"
+//   - "1.0.0", "=1.0.0", "==1.0.0"
+//   - "!1.0.0", "!=1.0.0"
+//
+// A Range can consist of multiple ranges separated by space:
+// Ranges can be linked by logical AND:
+//   - ">1.0.0 <2.0.0" would match between both ranges, so "1.1.1" and "1.8.7" but not "1.0.0" or "2.0.0"
+//   - ">1.0.0 <3.0.0 !2.0.3-beta.2" would match every version between 1.0.0 and 3.0.0 except 2.0.3-beta.2
+//
+// Ranges can also be linked by logical OR:
+//   - "<2.0.0 || >=3.0.0" would match "1.x.x" and "3.x.x" but not "2.x.x"
+//
+// AND has a higher precedence than OR. It's not possible to use brackets.
+//
+// Ranges can be combined by both AND and OR
+//
+//  - `>1.0.0 <2.0.0 || >3.0.0 !4.2.1` would match `1.2.3`, `1.9.9`, `3.1.1`, but not `4.2.1`, `2.1.1`
+func ParseRange(s string) (Range, error) {
+	parts := splitAndTrim(s)
+	orParts, err := splitORParts(parts)
+	if err != nil {
+		return nil, err
+	}
+	expandedParts, err := expandWildcardVersion(orParts)
+	if err != nil {
+		return nil, err
+	}
+	var orFn Range
+	for _, p := range expandedParts {
+		var andFn Range
+		for _, ap := range p {
+			opStr, vStr, err := splitComparatorVersion(ap)
+			if err != nil {
+				return nil, err
+			}
+			vr, err := buildVersionRange(opStr, vStr)
+			if err != nil {
+				return nil, fmt.Errorf("Could not parse Range %q: %s", ap, err)
+			}
+			rf := vr.rangeFunc()
+
+			// Set function
+			if andFn == nil {
+				andFn = rf
+			} else { // Combine with existing function
+				andFn = andFn.AND(rf)
+			}
+		}
+		if orFn == nil {
+			orFn = andFn
+		} else {
+			orFn = orFn.OR(andFn)
+		}
+
+	}
+	return orFn, nil
+}
+
+// splitORParts splits the already cleaned parts by '||'.
+// Checks for invalid positions of the operator and returns an
+// error if found.
+func splitORParts(parts []string) ([][]string, error) {
+	var ORparts [][]string
+	last := 0
+	for i, p := range parts {
+		if p == "||" {
+			if i == 0 {
+				return nil, fmt.Errorf("First element in range is '||'")
+			}
+			ORparts = append(ORparts, parts[last:i])
+			last = i + 1
+		}
+	}
+	if last == len(parts) {
+		return nil, fmt.Errorf("Last element in range is '||'")
+	}
+	ORparts = append(ORparts, parts[last:])
+	return ORparts, nil
+}
+
+// buildVersionRange takes a slice of 2: operator and version
+// and builds a versionRange, otherwise an error.
+func buildVersionRange(opStr, vStr string) (*versionRange, error) {
+	c := parseComparator(opStr)
+	if c == nil {
+		return nil, fmt.Errorf("Could not parse comparator %q in %q", opStr, strings.Join([]string{opStr, vStr}, ""))
+	}
+	v, err := Parse(vStr)
+	if err != nil {
+		return nil, fmt.Errorf("Could not parse version %q in %q: %s", vStr, strings.Join([]string{opStr, vStr}, ""), err)
+	}
+
+	return &versionRange{
+		v: v,
+		c: c,
+	}, nil
+
+}
+
+// inArray checks if a byte is contained in an array of bytes
+func inArray(s byte, list []byte) bool {
+	for _, el := range list {
+		if el == s {
+			return true
+		}
+	}
+	return false
+}
+
+// splitAndTrim splits a range string by spaces and cleans whitespaces
+func splitAndTrim(s string) (result []string) {
+	last := 0
+	var lastChar byte
+	excludeFromSplit := []byte{'>', '<', '='}
+	for i := 0; i < len(s); i++ {
+		if s[i] == ' ' && !inArray(lastChar, excludeFromSplit) {
+			if last < i-1 {
+				result = append(result, s[last:i])
+			}
+			last = i + 1
+		} else if s[i] != ' ' {
+			lastChar = s[i]
+		}
+	}
+	if last < len(s)-1 {
+		result = append(result, s[last:])
+	}
+
+	for i, v := range result {
+		result[i] = strings.Replace(v, " ", "", -1)
+	}
+
+	// parts := strings.Split(s, " ")
+	// for _, x := range parts {
+	// 	if s := strings.TrimSpace(x); len(s) != 0 {
+	// 		result = append(result, s)
+	// 	}
+	// }
+	return
+}
+
+// splitComparatorVersion splits the comparator from the version.
+// Input must be free of leading or trailing spaces.
+func splitComparatorVersion(s string) (string, string, error) {
+	i := strings.IndexFunc(s, unicode.IsDigit)
+	if i == -1 {
+		return "", "", fmt.Errorf("Could not get version from string: %q", s)
+	}
+	return strings.TrimSpace(s[0:i]), s[i:], nil
+}
+
+// getWildcardType will return the type of wildcard that the
+// passed version contains
+func getWildcardType(vStr string) wildcardType {
+	parts := strings.Split(vStr, ".")
+	nparts := len(parts)
+	wildcard := parts[nparts-1]
+
+	possibleWildcardType := wildcardTypefromInt(nparts)
+	if wildcard == "x" {
+		return possibleWildcardType
+	}
+
+	return noneWildcard
+}
+
+// createVersionFromWildcard will convert a wildcard version
+// into a regular version, replacing 'x's with '0's, handling
+// special cases like '1.x.x' and '1.x'
+func createVersionFromWildcard(vStr string) string {
+	// handle 1.x.x
+	vStr2 := strings.Replace(vStr, ".x.x", ".x", 1)
+	vStr2 = strings.Replace(vStr2, ".x", ".0", 1)
+	parts := strings.Split(vStr2, ".")
+
+	// handle 1.x
+	if len(parts) == 2 {
+		return vStr2 + ".0"
+	}
+
+	return vStr2
+}
+
+// incrementMajorVersion will increment the major version
+// of the passed version
+func incrementMajorVersion(vStr string) (string, error) {
+	parts := strings.Split(vStr, ".")
+	i, err := strconv.Atoi(parts[0])
+	if err != nil {
+		return "", err
+	}
+	parts[0] = strconv.Itoa(i + 1)
+
+	return strings.Join(parts, "."), nil
+}
+
+// incrementMajorVersion will increment the minor version
+// of the passed version
+func incrementMinorVersion(vStr string) (string, error) {
+	parts := strings.Split(vStr, ".")
+	i, err := strconv.Atoi(parts[1])
+	if err != nil {
+		return "", err
+	}
+	parts[1] = strconv.Itoa(i + 1)
+
+	return strings.Join(parts, "."), nil
+}
+
+// expandWildcardVersion will expand wildcards inside versions
+// following these rules:
+//
+// * when dealing with patch wildcards:
+// >= 1.2.x    will become    >= 1.2.0
+// <= 1.2.x    will become    <  1.3.0
+// >  1.2.x    will become    >= 1.3.0
+// <  1.2.x    will become    <  1.2.0
+// != 1.2.x    will become    <  1.2.0 >= 1.3.0
+//
+// * when dealing with minor wildcards:
+// >= 1.x      will become    >= 1.0.0
+// <= 1.x      will become    <  2.0.0
+// >  1.x      will become    >= 2.0.0
+// <  1.0      will become    <  1.0.0
+// != 1.x      will become    <  1.0.0 >= 2.0.0
+//
+// * when dealing with wildcards without
+// version operator:
+// 1.2.x       will become    >= 1.2.0 < 1.3.0
+// 1.x         will become    >= 1.0.0 < 2.0.0
+func expandWildcardVersion(parts [][]string) ([][]string, error) {
+	var expandedParts [][]string
+	for _, p := range parts {
+		var newParts []string
+		for _, ap := range p {
+			if strings.Index(ap, "x") != -1 {
+				opStr, vStr, err := splitComparatorVersion(ap)
+				if err != nil {
+					return nil, err
+				}
+
+				versionWildcardType := getWildcardType(vStr)
+				flatVersion := createVersionFromWildcard(vStr)
+
+				var resultOperator string
+				var shouldIncrementVersion bool
+				switch opStr {
+				case ">":
+					resultOperator = ">="
+					shouldIncrementVersion = true
+				case ">=":
+					resultOperator = ">="
+				case "<":
+					resultOperator = "<"
+				case "<=":
+					resultOperator = "<"
+					shouldIncrementVersion = true
+				case "", "=", "==":
+					newParts = append(newParts, ">="+flatVersion)
+					resultOperator = "<"
+					shouldIncrementVersion = true
+				case "!=", "!":
+					newParts = append(newParts, "<"+flatVersion)
+					resultOperator = ">="
+					shouldIncrementVersion = true
+				}
+
+				var resultVersion string
+				if shouldIncrementVersion {
+					switch versionWildcardType {
+					case patchWildcard:
+						resultVersion, _ = incrementMinorVersion(flatVersion)
+					case minorWildcard:
+						resultVersion, _ = incrementMajorVersion(flatVersion)
+					}
+				} else {
+					resultVersion = flatVersion
+				}
+
+				ap = resultOperator + resultVersion
+			}
+			newParts = append(newParts, ap)
+		}
+		expandedParts = append(expandedParts, newParts)
+	}
+
+	return expandedParts, nil
+}
+
+func parseComparator(s string) comparator {
+	switch s {
+	case "==":
+		fallthrough
+	case "":
+		fallthrough
+	case "=":
+		return compEQ
+	case ">":
+		return compGT
+	case ">=":
+		return compGE
+	case "<":
+		return compLT
+	case "<=":
+		return compLE
+	case "!":
+		fallthrough
+	case "!=":
+		return compNE
+	}
+
+	return nil
+}
+
+// MustParseRange is like ParseRange but panics if the range cannot be parsed.
+func MustParseRange(s string) Range {
+	r, err := ParseRange(s)
+	if err != nil {
+		panic(`semver: ParseRange(` + s + `): ` + err.Error())
+	}
+	return r
+}
--- a/build/manifest/vendor/github.com/blang/semver/semver.go
+++ b/build/manifest/vendor/github.com/blang/semver/semver.go
@ -0,0 +1,418 @@
+package semver
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+const (
+	numbers  string = "0123456789"
+	alphas          = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-"
+	alphanum        = alphas + numbers
+)
+
+// SpecVersion is the latest fully supported spec version of semver
+var SpecVersion = Version{
+	Major: 2,
+	Minor: 0,
+	Patch: 0,
+}
+
+// Version represents a semver compatible version
+type Version struct {
+	Major uint64
+	Minor uint64
+	Patch uint64
+	Pre   []PRVersion
+	Build []string //No Precendence
+}
+
+// Version to string
+func (v Version) String() string {
+	b := make([]byte, 0, 5)
+	b = strconv.AppendUint(b, v.Major, 10)
+	b = append(b, '.')
+	b = strconv.AppendUint(b, v.Minor, 10)
+	b = append(b, '.')
+	b = strconv.AppendUint(b, v.Patch, 10)
+
+	if len(v.Pre) > 0 {
+		b = append(b, '-')
+		b = append(b, v.Pre[0].String()...)
+
+		for _, pre := range v.Pre[1:] {
+			b = append(b, '.')
+			b = append(b, pre.String()...)
+		}
+	}
+
+	if len(v.Build) > 0 {
+		b = append(b, '+')
+		b = append(b, v.Build[0]...)
+
+		for _, build := range v.Build[1:] {
+			b = append(b, '.')
+			b = append(b, build...)
+		}
+	}
+
+	return string(b)
+}
+
+// Equals checks if v is equal to o.
+func (v Version) Equals(o Version) bool {
+	return (v.Compare(o) == 0)
+}
+
+// EQ checks if v is equal to o.
+func (v Version) EQ(o Version) bool {
+	return (v.Compare(o) == 0)
+}
+
+// NE checks if v is not equal to o.
+func (v Version) NE(o Version) bool {
+	return (v.Compare(o) != 0)
+}
+
+// GT checks if v is greater than o.
+func (v Version) GT(o Version) bool {
+	return (v.Compare(o) == 1)
+}
+
+// GTE checks if v is greater than or equal to o.
+func (v Version) GTE(o Version) bool {
+	return (v.Compare(o) >= 0)
+}
+
+// GE checks if v is greater than or equal to o.
+func (v Version) GE(o Version) bool {
+	return (v.Compare(o) >= 0)
+}
+
+// LT checks if v is less than o.
+func (v Version) LT(o Version) bool {
+	return (v.Compare(o) == -1)
+}
+
+// LTE checks if v is less than or equal to o.
+func (v Version) LTE(o Version) bool {
+	return (v.Compare(o) <= 0)
+}
+
+// LE checks if v is less than or equal to o.
+func (v Version) LE(o Version) bool {
+	return (v.Compare(o) <= 0)
+}
+
+// Compare compares Versions v to o:
+// -1 == v is less than o
+// 0 == v is equal to o
+// 1 == v is greater than o
+func (v Version) Compare(o Version) int {
+	if v.Major != o.Major {
+		if v.Major > o.Major {
+			return 1
+		}
+		return -1
+	}
+	if v.Minor != o.Minor {
+		if v.Minor > o.Minor {
+			return 1
+		}
+		return -1
+	}
+	if v.Patch != o.Patch {
+		if v.Patch > o.Patch {
+			return 1
+		}
+		return -1
+	}
+
+	// Quick comparison if a version has no prerelease versions
+	if len(v.Pre) == 0 && len(o.Pre) == 0 {
+		return 0
+	} else if len(v.Pre) == 0 && len(o.Pre) > 0 {
+		return 1
+	} else if len(v.Pre) > 0 && len(o.Pre) == 0 {
+		return -1
+	}
+
+	i := 0
+	for ; i < len(v.Pre) && i < len(o.Pre); i++ {
+		if comp := v.Pre[i].Compare(o.Pre[i]); comp == 0 {
+			continue
+		} else if comp == 1 {
+			return 1
+		} else {
+			return -1
+		}
+	}
+
+	// If all pr versions are the equal but one has further prversion, this one greater
+	if i == len(v.Pre) && i == len(o.Pre) {
+		return 0
+	} else if i == len(v.Pre) && i < len(o.Pre) {
+		return -1
+	} else {
+		return 1
+	}
+
+}
+
+// Validate validates v and returns error in case
+func (v Version) Validate() error {
+	// Major, Minor, Patch already validated using uint64
+
+	for _, pre := range v.Pre {
+		if !pre.IsNum { //Numeric prerelease versions already uint64
+			if len(pre.VersionStr) == 0 {
+				return fmt.Errorf("Prerelease can not be empty %q", pre.VersionStr)
+			}
+			if !containsOnly(pre.VersionStr, alphanum) {
+				return fmt.Errorf("Invalid character(s) found in prerelease %q", pre.VersionStr)
+			}
+		}
+	}
+
+	for _, build := range v.Build {
+		if len(build) == 0 {
+			return fmt.Errorf("Build meta data can not be empty %q", build)
+		}
+		if !containsOnly(build, alphanum) {
+			return fmt.Errorf("Invalid character(s) found in build meta data %q", build)
+		}
+	}
+
+	return nil
+}
+
+// New is an alias for Parse and returns a pointer, parses version string and returns a validated Version or error
+func New(s string) (vp *Version, err error) {
+	v, err := Parse(s)
+	vp = &v
+	return
+}
+
+// Make is an alias for Parse, parses version string and returns a validated Version or error
+func Make(s string) (Version, error) {
+	return Parse(s)
+}
+
+// ParseTolerant allows for certain version specifications that do not strictly adhere to semver
+// specs to be parsed by this library. It does so by normalizing versions before passing them to
+// Parse(). It currently trims spaces, removes a "v" prefix, and adds a 0 patch number to versions
+// with only major and minor components specified
+func ParseTolerant(s string) (Version, error) {
+	s = strings.TrimSpace(s)
+	s = strings.TrimPrefix(s, "v")
+
+	// Split into major.minor.(patch+pr+meta)
+	parts := strings.SplitN(s, ".", 3)
+	if len(parts) < 3 {
+		if strings.ContainsAny(parts[len(parts)-1], "+-") {
+			return Version{}, errors.New("Short version cannot contain PreRelease/Build meta data")
+		}
+		for len(parts) < 3 {
+			parts = append(parts, "0")
+		}
+		s = strings.Join(parts, ".")
+	}
+
+	return Parse(s)
+}
+
+// Parse parses version string and returns a validated Version or error
+func Parse(s string) (Version, error) {
+	if len(s) == 0 {
+		return Version{}, errors.New("Version string empty")
+	}
+
+	// Split into major.minor.(patch+pr+meta)
+	parts := strings.SplitN(s, ".", 3)
+	if len(parts) != 3 {
+		return Version{}, errors.New("No Major.Minor.Patch elements found")
+	}
+
+	// Major
+	if !containsOnly(parts[0], numbers) {
+		return Version{}, fmt.Errorf("Invalid character(s) found in major number %q", parts[0])
+	}
+	if hasLeadingZeroes(parts[0]) {
+		return Version{}, fmt.Errorf("Major number must not contain leading zeroes %q", parts[0])
+	}
+	major, err := strconv.ParseUint(parts[0], 10, 64)
+	if err != nil {
+		return Version{}, err
+	}
+
+	// Minor
+	if !containsOnly(parts[1], numbers) {
+		return Version{}, fmt.Errorf("Invalid character(s) found in minor number %q", parts[1])
+	}
+	if hasLeadingZeroes(parts[1]) {
+		return Version{}, fmt.Errorf("Minor number must not contain leading zeroes %q", parts[1])
+	}
+	minor, err := strconv.ParseUint(parts[1], 10, 64)
+	if err != nil {
+		return Version{}, err
+	}
+
+	v := Version{}
+	v.Major = major
+	v.Minor = minor
+
+	var build, prerelease []string
+	patchStr := parts[2]
+
+	if buildIndex := strings.IndexRune(patchStr, '+'); buildIndex != -1 {
+		build = strings.Split(patchStr[buildIndex+1:], ".")
+		patchStr = patchStr[:buildIndex]
+	}
+
+	if preIndex := strings.IndexRune(patchStr, '-'); preIndex != -1 {
+		prerelease = strings.Split(patchStr[preIndex+1:], ".")
+		patchStr = patchStr[:preIndex]
+	}
+
+	if !containsOnly(patchStr, numbers) {
+		return Version{}, fmt.Errorf("Invalid character(s) found in patch number %q", patchStr)
+	}
+	if hasLeadingZeroes(patchStr) {
+		return Version{}, fmt.Errorf("Patch number must not contain leading zeroes %q", patchStr)
+	}
+	patch, err := strconv.ParseUint(patchStr, 10, 64)
+	if err != nil {
+		return Version{}, err
+	}
+
+	v.Patch = patch
+
+	// Prerelease
+	for _, prstr := range prerelease {
+		parsedPR, err := NewPRVersion(prstr)
+		if err != nil {
+			return Version{}, err
+		}
+		v.Pre = append(v.Pre, parsedPR)
+	}
+
+	// Build meta data
+	for _, str := range build {
+		if len(str) == 0 {
+			return Version{}, errors.New("Build meta data is empty")
+		}
+		if !containsOnly(str, alphanum) {
+			return Version{}, fmt.Errorf("Invalid character(s) found in build meta data %q", str)
+		}
+		v.Build = append(v.Build, str)
+	}
+
+	return v, nil
+}
+
+// MustParse is like Parse but panics if the version cannot be parsed.
+func MustParse(s string) Version {
+	v, err := Parse(s)
+	if err != nil {
+		panic(`semver: Parse(` + s + `): ` + err.Error())
+	}
+	return v
+}
+
+// PRVersion represents a PreRelease Version
+type PRVersion struct {
+	VersionStr string
+	VersionNum uint64
+	IsNum      bool
+}
+
+// NewPRVersion creates a new valid prerelease version
+func NewPRVersion(s string) (PRVersion, error) {
+	if len(s) == 0 {
+		return PRVersion{}, errors.New("Prerelease is empty")
+	}
+	v := PRVersion{}
+	if containsOnly(s, numbers) {
+		if hasLeadingZeroes(s) {
+			return PRVersion{}, fmt.Errorf("Numeric PreRelease version must not contain leading zeroes %q", s)
+		}
+		num, err := strconv.ParseUint(s, 10, 64)
+
+		// Might never be hit, but just in case
+		if err != nil {
+			return PRVersion{}, err
+		}
+		v.VersionNum = num
+		v.IsNum = true
+	} else if containsOnly(s, alphanum) {
+		v.VersionStr = s
+		v.IsNum = false
+	} else {
+		return PRVersion{}, fmt.Errorf("Invalid character(s) found in prerelease %q", s)
+	}
+	return v, nil
+}
+
+// IsNumeric checks if prerelease-version is numeric
+func (v PRVersion) IsNumeric() bool {
+	return v.IsNum
+}
+
+// Compare compares two PreRelease Versions v and o:
+// -1 == v is less than o
+// 0 == v is equal to o
+// 1 == v is greater than o
+func (v PRVersion) Compare(o PRVersion) int {
+	if v.IsNum && !o.IsNum {
+		return -1
+	} else if !v.IsNum && o.IsNum {
+		return 1
+	} else if v.IsNum && o.IsNum {
+		if v.VersionNum == o.VersionNum {
+			return 0
+		} else if v.VersionNum > o.VersionNum {
+			return 1
+		} else {
+			return -1
+		}
+	} else { // both are Alphas
+		if v.VersionStr == o.VersionStr {
+			return 0
+		} else if v.VersionStr > o.VersionStr {
+			return 1
+		} else {
+			return -1
+		}
+	}
+}
+
+// PreRelease version to string
+func (v PRVersion) String() string {
+	if v.IsNum {
+		return strconv.FormatUint(v.VersionNum, 10)
+	}
+	return v.VersionStr
+}
+
+func containsOnly(s string, set string) bool {
+	return strings.IndexFunc(s, func(r rune) bool {
+		return !strings.ContainsRune(set, r)
+	}) == -1
+}
+
+func hasLeadingZeroes(s string) bool {
+	return len(s) > 1 && s[0] == '0'
+}
+
+// NewBuildVersion creates a new valid build version
+func NewBuildVersion(s string) (string, error) {
+	if len(s) == 0 {
+		return "", errors.New("Buildversion is empty")
+	}
+	if !containsOnly(s, alphanum) {
+		return "", fmt.Errorf("Invalid character(s) found in build meta data %q", s)
+	}
+	return s, nil
+}
--- a/build/manifest/vendor/github.com/blang/semver/sort.go
+++ b/build/manifest/vendor/github.com/blang/semver/sort.go
@ -0,0 +1,28 @@
+package semver
+
+import (
+	"sort"
+)
+
+// Versions represents multiple versions.
+type Versions []Version
+
+// Len returns length of version collection
+func (s Versions) Len() int {
+	return len(s)
+}
+
+// Swap swaps two versions inside the collection by its indices
+func (s Versions) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
+}
+
+// Less checks if version at index i is less than version at index j
+func (s Versions) Less(i, j int) bool {
+	return s[i].LT(s[j])
+}
+
+// Sort sorts a slice of versions
+func Sort(versions []Version) {
+	sort.Sort(Versions(versions))
+}
--- a/build/manifest/vendor/github.com/blang/semver/sql.go
+++ b/build/manifest/vendor/github.com/blang/semver/sql.go
@ -0,0 +1,30 @@
+package semver
+
+import (
+	"database/sql/driver"
+	"fmt"
+)
+
+// Scan implements the database/sql.Scanner interface.
+func (v *Version) Scan(src interface{}) (err error) {
+	var str string
+	switch src := src.(type) {
+	case string:
+		str = src
+	case []byte:
+		str = string(src)
+	default:
+		return fmt.Errorf("Version.Scan: cannot convert %T to string.", src)
+	}
+
+	if t, err := Parse(str); err == nil {
+		*v = t
+	}
+
+	return
+}
+
+// Value implements the database/sql/driver.Valuer interface.
+func (v Version) Value() (driver.Value, error) {
+	return v.String(), nil
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/NOTICE.txt
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/NOTICE.txt
@ -429,6 +429,41 @@ Go package for fast and reliable abstraction of browser user agent strings.

 ---

+## blang/semver
+
+This product contains 'semver' by Benedikt Lang.
+
+Semantic Versioning (semver) library written in golang
+
+* HOMEPAGE:
+  * https://github.com/blang/semver
+
+* LICENSE: MIT
+
+The MIT License
+
+Copyright (c) 2014 Benedikt Lang <github at benediktlang.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+---
+
 ## dgryski/dgoogauth

 This product contains 'dgoogauth' by Damian Gryski.
@ -2947,6 +2982,41 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI

 ---

+## sirupsen/logrus
+
+This product contains 'logrus' by Simon Eskildsen.
+
+Structured, pluggable logging for Go.
+
+* HOMEPAGE:
+  * https://github.com/sirupsen/logrus
+
+* LICENSE: MIT
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Simon Eskildsen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+---
+
 ## spf13/cobra

 This product contains 'cobra' by Steve Francia.
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/channel.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/channel.go
@ -29,6 +29,9 @@ const (
 	CHANNEL_HEADER_MAX_RUNES       = 1024
 	CHANNEL_PURPOSE_MAX_RUNES      = 250
 	CHANNEL_CACHE_SIZE             = 25000
+
+	CHANNEL_SORT_BY_USERNAME = "username"
+	CHANNEL_SORT_BY_STATUS   = "status"
 )

 type Channel struct {
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/channel_member.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/channel_member.go
@ -11,12 +11,16 @@ import (
 )

 const (
-	CHANNEL_NOTIFY_DEFAULT      = "default"
-	CHANNEL_NOTIFY_ALL          = "all"
-	CHANNEL_NOTIFY_MENTION      = "mention"
-	CHANNEL_NOTIFY_NONE         = "none"
-	CHANNEL_MARK_UNREAD_ALL     = "all"
-	CHANNEL_MARK_UNREAD_MENTION = "mention"
+	CHANNEL_NOTIFY_DEFAULT              = "default"
+	CHANNEL_NOTIFY_ALL                  = "all"
+	CHANNEL_NOTIFY_MENTION              = "mention"
+	CHANNEL_NOTIFY_NONE                 = "none"
+	CHANNEL_MARK_UNREAD_ALL             = "all"
+	CHANNEL_MARK_UNREAD_MENTION         = "mention"
+	IGNORE_CHANNEL_MENTIONS_DEFAULT     = "default"
+	IGNORE_CHANNEL_MENTIONS_OFF         = "off"
+	IGNORE_CHANNEL_MENTIONS_ON          = "on"
+	IGNORE_CHANNEL_MENTIONS_NOTIFY_PROP = "ignore_channel_mentions"
 )

 type ChannelUnread struct {
@ -116,6 +120,12 @@ func (o *ChannelMember) IsValid() *AppError {
 		}
 	}

+	if ignoreChannelMentions, ok := o.NotifyProps[IGNORE_CHANNEL_MENTIONS_NOTIFY_PROP]; ok {
+		if len(ignoreChannelMentions) > 40 || !IsIgnoreChannelMentionsValid(ignoreChannelMentions) {
+			return NewAppError("ChannelMember.IsValid", "model.channel_member.is_valid.ignore_channel_mentions_value.app_error", nil, "ignore_channel_mentions="+ignoreChannelMentions, http.StatusBadRequest)
+		}
+	}
+
 	return nil
 }

@ -146,11 +156,16 @@ func IsSendEmailValid(sendEmail string) bool {
 	return sendEmail == CHANNEL_NOTIFY_DEFAULT || sendEmail == "true" || sendEmail == "false"
 }

+func IsIgnoreChannelMentionsValid(ignoreChannelMentions string) bool {
+	return ignoreChannelMentions == IGNORE_CHANNEL_MENTIONS_ON || ignoreChannelMentions == IGNORE_CHANNEL_MENTIONS_OFF || ignoreChannelMentions == IGNORE_CHANNEL_MENTIONS_DEFAULT
+}
+
 func GetDefaultChannelNotifyProps() StringMap {
 	return StringMap{
-		DESKTOP_NOTIFY_PROP:     CHANNEL_NOTIFY_DEFAULT,
-		MARK_UNREAD_NOTIFY_PROP: CHANNEL_MARK_UNREAD_ALL,
-		PUSH_NOTIFY_PROP:        CHANNEL_NOTIFY_DEFAULT,
-		EMAIL_NOTIFY_PROP:       CHANNEL_NOTIFY_DEFAULT,
+		DESKTOP_NOTIFY_PROP:                 CHANNEL_NOTIFY_DEFAULT,
+		MARK_UNREAD_NOTIFY_PROP:             CHANNEL_MARK_UNREAD_ALL,
+		PUSH_NOTIFY_PROP:                    CHANNEL_NOTIFY_DEFAULT,
+		EMAIL_NOTIFY_PROP:                   CHANNEL_NOTIFY_DEFAULT,
+		IGNORE_CHANNEL_MENTIONS_NOTIFY_PROP: IGNORE_CHANNEL_MENTIONS_DEFAULT,
 	}
 }
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/client4.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/client4.go
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/command_args.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/command_args.go
@ -16,6 +16,7 @@ type CommandArgs struct {
 	TeamId    string               `json:"team_id"`
 	RootId    string               `json:"root_id"`
 	ParentId  string               `json:"parent_id"`
+	TriggerId string               `json:"trigger_id,omitempty"`
 	Command   string               `json:"command"`
 	SiteURL   string               `json:"-"`
 	T         goi18n.TranslateFunc `json:"-"`
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/command_response.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/command_response.go
@ -18,14 +18,16 @@ const (
 )

 type CommandResponse struct {
-	ResponseType string             `json:"response_type"`
-	Text         string             `json:"text"`
-	Username     string             `json:"username"`
-	IconURL      string             `json:"icon_url"`
-	Type         string             `json:"type"`
-	Props        StringInterface    `json:"props"`
-	GotoLocation string             `json:"goto_location"`
-	Attachments  []*SlackAttachment `json:"attachments"`
+	ResponseType   string             `json:"response_type"`
+	Text           string             `json:"text"`
+	Username       string             `json:"username"`
+	IconURL        string             `json:"icon_url"`
+	Type           string             `json:"type"`
+	Props          StringInterface    `json:"props"`
+	GotoLocation   string             `json:"goto_location"`
+	TriggerId      string             `json:"trigger_id"`
+	Attachments    []*SlackAttachment `json:"attachments"`
+	ExtraResponses []*CommandResponse `json:"extra_responses"`
 }

 func (o *CommandResponse) ToJson() string {
@ -63,5 +65,11 @@ func CommandResponseFromJson(data io.Reader) (*CommandResponse, error) {

 	o.Attachments = StringifySlackFieldValue(o.Attachments)

+	if o.ExtraResponses != nil {
+		for _, resp := range o.ExtraResponses {
+			resp.Attachments = StringifySlackFieldValue(resp.Attachments)
+		}
+	}
+
 	return &o, nil
 }
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/config.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/config.go
@ -4,12 +4,14 @@
 package model

 import (
+	"crypto/tls"
 	"encoding/json"
 	"io"
 	"math"
 	"net"
 	"net/http"
 	"net/url"
+	"os"
 	"regexp"
 	"strconv"
 	"strings"
@ -110,6 +112,7 @@ const (
 	SUPPORT_SETTINGS_DEFAULT_HELP_LINK             = "https://about.mattermost.com/default-help/"
 	SUPPORT_SETTINGS_DEFAULT_REPORT_A_PROBLEM_LINK = "https://about.mattermost.com/default-report-a-problem/"
 	SUPPORT_SETTINGS_DEFAULT_SUPPORT_EMAIL         = "feedback@mattermost.com"
+	SUPPORT_SETTINGS_DEFAULT_RE_ACCEPTANCE_PERIOD  = 365

 	LDAP_SETTINGS_DEFAULT_FIRST_NAME_ATTRIBUTE = ""
 	LDAP_SETTINGS_DEFAULT_LAST_NAME_ATTRIBUTE  = ""
@ -133,9 +136,6 @@ const (
 	NATIVEAPP_SETTINGS_DEFAULT_ANDROID_APP_DOWNLOAD_LINK = "https://about.mattermost.com/mattermost-android-app/"
 	NATIVEAPP_SETTINGS_DEFAULT_IOS_APP_DOWNLOAD_LINK     = "https://about.mattermost.com/mattermost-ios-app/"

-	WEBRTC_SETTINGS_DEFAULT_STUN_URI = ""
-	WEBRTC_SETTINGS_DEFAULT_TURN_URI = ""
-
 	ANALYTICS_SETTINGS_DEFAULT_MAX_USERS_FOR_STATISTICS = 2500

 	ANNOUNCEMENT_SETTINGS_DEFAULT_BANNER_COLOR      = "#f2a93b"
@ -174,6 +174,31 @@ const (
 	CLIENT_SIDE_CERT_CHECK_SECONDARY_AUTH = "secondary"
 )

+var ServerTLSSupportedCiphers = map[string]uint16{
+	"TLS_RSA_WITH_RC4_128_SHA":                tls.TLS_RSA_WITH_RC4_128_SHA,
+	"TLS_RSA_WITH_3DES_EDE_CBC_SHA":           tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
+	"TLS_RSA_WITH_AES_128_CBC_SHA":            tls.TLS_RSA_WITH_AES_128_CBC_SHA,
+	"TLS_RSA_WITH_AES_256_CBC_SHA":            tls.TLS_RSA_WITH_AES_256_CBC_SHA,
+	"TLS_RSA_WITH_AES_128_CBC_SHA256":         tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
+	"TLS_RSA_WITH_AES_128_GCM_SHA256":         tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
+	"TLS_RSA_WITH_AES_256_GCM_SHA384":         tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
+	"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA":        tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
+	"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA":    tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
+	"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA":    tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+	"TLS_ECDHE_RSA_WITH_RC4_128_SHA":          tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
+	"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA":     tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
+	"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA":      tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
+	"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA":      tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+	"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
+	"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256":   tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
+	"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256":   tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+	"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+	"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384":   tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+	"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+	"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305":    tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
+	"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305":  tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
+}
+
 type ServiceSettings struct {
 	SiteURL                                           *string
 	WebsocketURL                                      *string
@ -182,6 +207,10 @@ type ServiceSettings struct {
 	ConnectionSecurity                                *string
 	TLSCertFile                                       *string
 	TLSKeyFile                                        *string
+	TLSMinVer                                         *string
+	TLSStrictTransport                                *bool
+	TLSStrictTransportMaxAge                          *int64
+	TLSOverwriteCiphers                               []string
 	UseLetsEncrypt                                    *bool
 	LetsEncryptCertificateCacheFile                   *string
 	Forward80To443                                    *bool
@ -194,7 +223,7 @@ type ServiceSettings struct {
 	EnableIncomingWebhooks                            bool
 	EnableOutgoingWebhooks                            bool
 	EnableCommands                                    *bool
-	EnableOnlyAdminIntegrations                       *bool
+	DEPRECATED_DO_NOT_USE_EnableOnlyAdminIntegrations *bool `json:"EnableOnlyAdminIntegrations"` // This field is deprecated and must not be used.
 	EnablePostUsernameOverride                        bool
 	EnablePostIconOverride                            bool
 	EnableLinkPreviews                                *bool
@ -224,9 +253,9 @@ type ServiceSettings struct {
 	EnableGifPicker                                   *bool
 	GfycatApiKey                                      *string
 	GfycatApiSecret                                   *string
-	RestrictCustomEmojiCreation                       *string
-	RestrictPostDelete                                *string
-	AllowEditPost                                     *string
+	DEPRECATED_DO_NOT_USE_RestrictCustomEmojiCreation *string `json:"RestrictCustomEmojiCreation"` // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPostDelete          *string `json:"RestrictPostDelete"`          // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_AllowEditPost               *string `json:"AllowEditPost"`               // This field is deprecated and must not be used.
 	PostEditTimeLimit                                 *int
 	TimeBetweenUserTypingUpdatesMilliseconds          *int64
 	EnablePostSearch                                  *bool
@ -246,7 +275,6 @@ type ServiceSettings struct {
 	ImageProxyOptions                                 *string
 	EnableAPITeamDeletion                             *bool
 	ExperimentalEnableHardenedMode                    *bool
-	ExperimentalLimitClientConfig                     *bool
 	EnableEmailInvitations                            *bool
 }

@ -324,6 +352,22 @@ func (s *ServiceSettings) SetDefaults() {
 		s.TLSCertFile = NewString(SERVICE_SETTINGS_DEFAULT_TLS_CERT_FILE)
 	}

+	if s.TLSMinVer == nil {
+		s.TLSMinVer = NewString("1.2")
+	}
+
+	if s.TLSStrictTransport == nil {
+		s.TLSStrictTransport = NewBool(false)
+	}
+
+	if s.TLSStrictTransportMaxAge == nil {
+		s.TLSStrictTransportMaxAge = NewInt64(63072000)
+	}
+
+	if s.TLSOverwriteCiphers == nil {
+		s.TLSOverwriteCiphers = []string{}
+	}
+
 	if s.UseLetsEncrypt == nil {
 		s.UseLetsEncrypt = NewBool(false)
 	}
@ -404,8 +448,8 @@ func (s *ServiceSettings) SetDefaults() {
 		s.EnableCommands = NewBool(false)
 	}

-	if s.EnableOnlyAdminIntegrations == nil {
-		s.EnableOnlyAdminIntegrations = NewBool(true)
+	if s.DEPRECATED_DO_NOT_USE_EnableOnlyAdminIntegrations == nil {
+		s.DEPRECATED_DO_NOT_USE_EnableOnlyAdminIntegrations = NewBool(true)
 	}

 	if s.WebsocketPort == nil {
@ -462,16 +506,16 @@ func (s *ServiceSettings) SetDefaults() {
 		s.GfycatApiSecret = NewString(SERVICE_SETTINGS_DEFAULT_GFYCAT_API_SECRET)
 	}

-	if s.RestrictCustomEmojiCreation == nil {
-		s.RestrictCustomEmojiCreation = NewString(RESTRICT_EMOJI_CREATION_ALL)
+	if s.DEPRECATED_DO_NOT_USE_RestrictCustomEmojiCreation == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictCustomEmojiCreation = NewString(RESTRICT_EMOJI_CREATION_ALL)
 	}

-	if s.RestrictPostDelete == nil {
-		s.RestrictPostDelete = NewString(PERMISSIONS_DELETE_POST_ALL)
+	if s.DEPRECATED_DO_NOT_USE_RestrictPostDelete == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictPostDelete = NewString(PERMISSIONS_DELETE_POST_ALL)
 	}

-	if s.AllowEditPost == nil {
-		s.AllowEditPost = NewString(ALLOW_EDIT_POST_ALWAYS)
+	if s.DEPRECATED_DO_NOT_USE_AllowEditPost == nil {
+		s.DEPRECATED_DO_NOT_USE_AllowEditPost = NewString(ALLOW_EDIT_POST_ALWAYS)
 	}

 	if s.ExperimentalEnableAuthenticationTransfer == nil {
@ -522,10 +566,6 @@ func (s *ServiceSettings) SetDefaults() {
 	if s.ExperimentalEnableHardenedMode == nil {
 		s.ExperimentalEnableHardenedMode = NewBool(false)
 	}
-
-	if s.ExperimentalLimitClientConfig == nil {
-		s.ExperimentalLimitClientConfig = NewBool(false)
-	}
 }

 type ClusterSettings struct {
@ -611,6 +651,7 @@ func (s *MetricsSettings) SetDefaults() {
 type ExperimentalSettings struct {
 	ClientSideCertEnable *bool
 	ClientSideCertCheck  *string
+	EnablePostMetadata   *bool
 }

 func (s *ExperimentalSettings) SetDefaults() {
@ -621,6 +662,10 @@ func (s *ExperimentalSettings) SetDefaults() {
 	if s.ClientSideCertCheck == nil {
 		s.ClientSideCertCheck = NewString(CLIENT_SIDE_CERT_CHECK_SECONDARY_AUTH)
 	}
+
+	if s.EnablePostMetadata == nil {
+		s.EnablePostMetadata = NewBool(false)
+	}
 }

 type AnalyticsSettings struct {
@ -644,17 +689,16 @@ type SSOSettings struct {
 }

 type SqlSettings struct {
-	DriverName                          *string
-	DataSource                          *string
-	DataSourceReplicas                  []string
-	DataSourceSearchReplicas            []string
-	MaxIdleConns                        *int
-	ConnMaxLifetimeMilliseconds         *int
-	MaxOpenConns                        *int
-	Trace                               bool
-	AtRestEncryptKey                    string
-	QueryTimeout                        *int
-	EnablePublicChannelsMaterialization *bool
+	DriverName                  *string
+	DataSource                  *string
+	DataSourceReplicas          []string
+	DataSourceSearchReplicas    []string
+	MaxIdleConns                *int
+	ConnMaxLifetimeMilliseconds *int
+	MaxOpenConns                *int
+	Trace                       bool
+	AtRestEncryptKey            string
+	QueryTimeout                *int
 }

 func (s *SqlSettings) SetDefaults() {
@ -685,10 +729,6 @@ func (s *SqlSettings) SetDefaults() {
 	if s.QueryTimeout == nil {
 		s.QueryTimeout = NewInt(30)
 	}
-
-	if s.EnablePublicChannelsMaterialization == nil {
-		s.EnablePublicChannelsMaterialization = NewBool(true)
-	}
 }

 type LogSettings struct {
@ -996,13 +1036,14 @@ type PrivacySettings struct {
 }

 type SupportSettings struct {
-	TermsOfServiceLink          *string
-	PrivacyPolicyLink           *string
-	AboutLink                   *string
-	HelpLink                    *string
-	ReportAProblemLink          *string
-	SupportEmail                *string
-	CustomTermsOfServiceEnabled *bool
+	TermsOfServiceLink                     *string
+	PrivacyPolicyLink                      *string
+	AboutLink                              *string
+	HelpLink                               *string
+	ReportAProblemLink                     *string
+	SupportEmail                           *string
+	CustomTermsOfServiceEnabled            *bool
+	CustomTermsOfServiceReAcceptancePeriod *int
 }

 func (s *SupportSettings) SetDefaults() {
@ -1053,6 +1094,10 @@ func (s *SupportSettings) SetDefaults() {
 	if s.CustomTermsOfServiceEnabled == nil {
 		s.CustomTermsOfServiceEnabled = NewBool(false)
 	}
+
+	if s.CustomTermsOfServiceReAcceptancePeriod == nil {
+		s.CustomTermsOfServiceReAcceptancePeriod = NewInt(SUPPORT_SETTINGS_DEFAULT_RE_ACCEPTANCE_PERIOD)
+	}
 }

 type AnnouncementSettings struct {
@ -1111,37 +1156,37 @@ func (s *ThemeSettings) SetDefaults() {
 }

 type TeamSettings struct {
-	SiteName                            string
-	MaxUsersPerTeam                     *int
-	EnableTeamCreation                  *bool
-	EnableUserCreation                  *bool
-	EnableOpenServer                    *bool
-	EnableUserDeactivation              *bool
-	RestrictCreationToDomains           string
-	EnableCustomBrand                   *bool
-	CustomBrandText                     *string
-	CustomDescriptionText               *string
-	RestrictDirectMessage               *string
-	RestrictTeamInvite                  *string
-	RestrictPublicChannelManagement     *string
-	RestrictPrivateChannelManagement    *string
-	RestrictPublicChannelCreation       *string
-	RestrictPrivateChannelCreation      *string
-	RestrictPublicChannelDeletion       *string
-	RestrictPrivateChannelDeletion      *string
-	RestrictPrivateChannelManageMembers *string
-	EnableXToLeaveChannelsFromLHS       *bool
-	UserStatusAwayTimeout               *int64
-	MaxChannelsPerTeam                  *int64
-	MaxNotificationsPerChannel          *int64
-	EnableConfirmNotificationsToChannel *bool
-	TeammateNameDisplay                 *string
-	ExperimentalViewArchivedChannels    *bool
-	ExperimentalEnableAutomaticReplies  *bool
-	ExperimentalHideTownSquareinLHS     *bool
-	ExperimentalTownSquareIsReadOnly    *bool
-	ExperimentalPrimaryTeam             *string
-	ExperimentalDefaultChannels         []string
+	SiteName                                                  string
+	MaxUsersPerTeam                                           *int
+	DEPRECATED_DO_NOT_USE_EnableTeamCreation                  *bool `json:"EnableTeamCreation"` // This field is deprecated and must not be used.
+	EnableUserCreation                                        *bool
+	EnableOpenServer                                          *bool
+	EnableUserDeactivation                                    *bool
+	RestrictCreationToDomains                                 string
+	EnableCustomBrand                                         *bool
+	CustomBrandText                                           *string
+	CustomDescriptionText                                     *string
+	RestrictDirectMessage                                     *string
+	DEPRECATED_DO_NOT_USE_RestrictTeamInvite                  *string `json:"RestrictTeamInvite"`                  // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPublicChannelManagement     *string `json:"RestrictPublicChannelManagement"`     // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManagement    *string `json:"RestrictPrivateChannelManagement"`    // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPublicChannelCreation       *string `json:"RestrictPublicChannelCreation"`       // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPrivateChannelCreation      *string `json:"RestrictPrivateChannelCreation"`      // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPublicChannelDeletion       *string `json:"RestrictPublicChannelDeletion"`       // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPrivateChannelDeletion      *string `json:"RestrictPrivateChannelDeletion"`      // This field is deprecated and must not be used.
+	DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManageMembers *string `json:"RestrictPrivateChannelManageMembers"` // This field is deprecated and must not be used.
+	EnableXToLeaveChannelsFromLHS                             *bool
+	UserStatusAwayTimeout                                     *int64
+	MaxChannelsPerTeam                                        *int64
+	MaxNotificationsPerChannel                                *int64
+	EnableConfirmNotificationsToChannel                       *bool
+	TeammateNameDisplay                                       *string
+	ExperimentalViewArchivedChannels                          *bool
+	ExperimentalEnableAutomaticReplies                        *bool
+	ExperimentalHideTownSquareinLHS                           *bool
+	ExperimentalTownSquareIsReadOnly                          *bool
+	ExperimentalPrimaryTeam                                   *string
+	ExperimentalDefaultChannels                               []string
 }

 func (s *TeamSettings) SetDefaults() {
@ -1173,49 +1218,49 @@ func (s *TeamSettings) SetDefaults() {
 		s.RestrictDirectMessage = NewString(DIRECT_MESSAGE_ANY)
 	}

-	if s.RestrictTeamInvite == nil {
-		s.RestrictTeamInvite = NewString(PERMISSIONS_ALL)
+	if s.DEPRECATED_DO_NOT_USE_RestrictTeamInvite == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictTeamInvite = NewString(PERMISSIONS_ALL)
 	}

-	if s.RestrictPublicChannelManagement == nil {
-		s.RestrictPublicChannelManagement = NewString(PERMISSIONS_ALL)
+	if s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelManagement == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelManagement = NewString(PERMISSIONS_ALL)
 	}

-	if s.RestrictPrivateChannelManagement == nil {
-		s.RestrictPrivateChannelManagement = NewString(PERMISSIONS_ALL)
+	if s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManagement == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManagement = NewString(PERMISSIONS_ALL)
 	}

-	if s.RestrictPublicChannelCreation == nil {
-		s.RestrictPublicChannelCreation = new(string)
+	if s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelCreation == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelCreation = new(string)
 		// If this setting does not exist, assume migration from <3.6, so use management setting as default.
-		if *s.RestrictPublicChannelManagement == PERMISSIONS_CHANNEL_ADMIN {
-			*s.RestrictPublicChannelCreation = PERMISSIONS_TEAM_ADMIN
+		if *s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelManagement == PERMISSIONS_CHANNEL_ADMIN {
+			*s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelCreation = PERMISSIONS_TEAM_ADMIN
 		} else {
-			*s.RestrictPublicChannelCreation = *s.RestrictPublicChannelManagement
+			*s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelCreation = *s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelManagement
 		}
 	}

-	if s.RestrictPrivateChannelCreation == nil {
+	if s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelCreation == nil {
 		// If this setting does not exist, assume migration from <3.6, so use management setting as default.
-		if *s.RestrictPrivateChannelManagement == PERMISSIONS_CHANNEL_ADMIN {
-			s.RestrictPrivateChannelCreation = NewString(PERMISSIONS_TEAM_ADMIN)
+		if *s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManagement == PERMISSIONS_CHANNEL_ADMIN {
+			s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelCreation = NewString(PERMISSIONS_TEAM_ADMIN)
 		} else {
-			s.RestrictPrivateChannelCreation = NewString(*s.RestrictPrivateChannelManagement)
+			s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelCreation = NewString(*s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManagement)
 		}
 	}

-	if s.RestrictPublicChannelDeletion == nil {
+	if s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelDeletion == nil {
 		// If this setting does not exist, assume migration from <3.6, so use management setting as default.
-		s.RestrictPublicChannelDeletion = NewString(*s.RestrictPublicChannelManagement)
+		s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelDeletion = NewString(*s.DEPRECATED_DO_NOT_USE_RestrictPublicChannelManagement)
 	}

-	if s.RestrictPrivateChannelDeletion == nil {
+	if s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelDeletion == nil {
 		// If this setting does not exist, assume migration from <3.6, so use management setting as default.
-		s.RestrictPrivateChannelDeletion = NewString(*s.RestrictPrivateChannelManagement)
+		s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelDeletion = NewString(*s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManagement)
 	}

-	if s.RestrictPrivateChannelManageMembers == nil {
-		s.RestrictPrivateChannelManageMembers = NewString(PERMISSIONS_ALL)
+	if s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManageMembers == nil {
+		s.DEPRECATED_DO_NOT_USE_RestrictPrivateChannelManageMembers = NewString(PERMISSIONS_ALL)
 	}

 	if s.EnableXToLeaveChannelsFromLHS == nil {
@ -1258,8 +1303,8 @@ func (s *TeamSettings) SetDefaults() {
 		s.ExperimentalDefaultChannels = []string{}
 	}

-	if s.EnableTeamCreation == nil {
-		s.EnableTeamCreation = NewBool(true)
+	if s.DEPRECATED_DO_NOT_USE_EnableTeamCreation == nil {
+		s.DEPRECATED_DO_NOT_USE_EnableTeamCreation = NewBool(true)
 	}

 	if s.EnableUserCreation == nil {
@ -1624,51 +1669,6 @@ func (s *NativeAppSettings) SetDefaults() {
 	}
 }

-type WebrtcSettings struct {
-	Enable              *bool
-	GatewayWebsocketUrl *string
-	GatewayAdminUrl     *string
-	GatewayAdminSecret  *string
-	StunURI             *string
-	TurnURI             *string
-	TurnUsername        *string
-	TurnSharedKey       *string
-}
-
-func (s *WebrtcSettings) SetDefaults() {
-	if s.Enable == nil {
-		s.Enable = NewBool(false)
-	}
-
-	if s.GatewayWebsocketUrl == nil {
-		s.GatewayWebsocketUrl = NewString("")
-	}
-
-	if s.GatewayAdminUrl == nil {
-		s.GatewayAdminUrl = NewString("")
-	}
-
-	if s.GatewayAdminSecret == nil {
-		s.GatewayAdminSecret = NewString("")
-	}
-
-	if s.StunURI == nil {
-		s.StunURI = NewString(WEBRTC_SETTINGS_DEFAULT_STUN_URI)
-	}
-
-	if s.TurnURI == nil {
-		s.TurnURI = NewString(WEBRTC_SETTINGS_DEFAULT_TURN_URI)
-	}
-
-	if s.TurnUsername == nil {
-		s.TurnUsername = NewString("")
-	}
-
-	if s.TurnSharedKey == nil {
-		s.TurnSharedKey = NewString("")
-	}
-}
-
 type ElasticsearchSettings struct {
 	ConnectionUrl                 *string
 	Username                      *string
@ -1886,14 +1886,6 @@ func (s *MessageExportSettings) SetDefaults() {
 		s.ExportFromTimestamp = NewInt64(0)
 	}

-	if s.EnableExport != nil && *s.EnableExport && *s.ExportFromTimestamp == int64(0) {
-		// when the feature is enabled via the System Console, use the current timestamp as the start time for future exports
-		s.ExportFromTimestamp = NewInt64(GetMillis())
-	} else if s.EnableExport != nil && !*s.EnableExport {
-		// when the feature is disabled, reset the timestamp so that the timestamp will be set if the feature is re-enabled
-		s.ExportFromTimestamp = NewInt64(0)
-	}
-
 	if s.BatchSize == nil {
 		s.BatchSize = NewInt(10000)
 	}
@ -1959,7 +1951,6 @@ type Config struct {
 	MetricsSettings       MetricsSettings
 	ExperimentalSettings  ExperimentalSettings
 	AnalyticsSettings     AnalyticsSettings
-	WebrtcSettings        WebrtcSettings
 	ElasticsearchSettings ElasticsearchSettings
 	DataRetentionSettings DataRetentionSettings
 	MessageExportSettings MessageExportSettings
@ -2035,7 +2026,6 @@ func (o *Config) SetDefaults() {
 	o.RateLimitSettings.SetDefaults()
 	o.LogSettings.SetDefaults()
 	o.JobSettings.SetDefaults()
-	o.WebrtcSettings.SetDefaults()
 	o.MessageExportSettings.SetDefaults()
 	o.TimezoneSettings.SetDefaults()
 	o.DisplaySettings.SetDefaults()
@ -2087,10 +2077,6 @@ func (o *Config) IsValid() *AppError {
 		return err
 	}

-	if err := o.WebrtcSettings.isValid(); err != nil {
-		return err
-	}
-
 	if err := o.ServiceSettings.isValid(); err != nil {
 		return err
 	}
@ -2322,36 +2308,37 @@ func (ss *SamlSettings) isValid() *AppError {
 	return nil
 }

-func (ws *WebrtcSettings) isValid() *AppError {
-	if *ws.Enable {
-		if len(*ws.GatewayWebsocketUrl) == 0 || !IsValidWebsocketUrl(*ws.GatewayWebsocketUrl) {
-			return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_gateway_ws_url.app_error", nil, "", http.StatusBadRequest)
-		} else if len(*ws.GatewayAdminUrl) == 0 || !IsValidHttpUrl(*ws.GatewayAdminUrl) {
-			return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_gateway_admin_url.app_error", nil, "", http.StatusBadRequest)
-		} else if len(*ws.GatewayAdminSecret) == 0 {
-			return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_gateway_admin_secret.app_error", nil, "", http.StatusBadRequest)
-		} else if len(*ws.StunURI) != 0 && !IsValidTurnOrStunServer(*ws.StunURI) {
-			return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_stun_uri.app_error", nil, "", http.StatusBadRequest)
-		} else if len(*ws.TurnURI) != 0 {
-			if !IsValidTurnOrStunServer(*ws.TurnURI) {
-				return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_turn_uri.app_error", nil, "", http.StatusBadRequest)
-			}
-			if len(*ws.TurnUsername) == 0 {
-				return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_turn_username.app_error", nil, "", http.StatusBadRequest)
-			} else if len(*ws.TurnSharedKey) == 0 {
-				return NewAppError("Config.IsValid", "model.config.is_valid.webrtc_turn_shared_key.app_error", nil, "", http.StatusBadRequest)
-			}
-		}
-	}
-
-	return nil
-}
-
 func (ss *ServiceSettings) isValid() *AppError {
 	if !(*ss.ConnectionSecurity == CONN_SECURITY_NONE || *ss.ConnectionSecurity == CONN_SECURITY_TLS) {
 		return NewAppError("Config.IsValid", "model.config.is_valid.webserver_security.app_error", nil, "", http.StatusBadRequest)
 	}

+	if *ss.ConnectionSecurity == CONN_SECURITY_TLS && *ss.UseLetsEncrypt == false {
+		appErr := NewAppError("Config.IsValid", "model.config.is_valid.tls_cert_file.app_error", nil, "", http.StatusBadRequest)
+
+		if *ss.TLSCertFile == "" {
+			return appErr
+		} else if _, err := os.Stat(*ss.TLSCertFile); os.IsNotExist(err) {
+			return appErr
+		}
+
+		appErr = NewAppError("Config.IsValid", "model.config.is_valid.tls_key_file.app_error", nil, "", http.StatusBadRequest)
+
+		if *ss.TLSKeyFile == "" {
+			return appErr
+		} else if _, err := os.Stat(*ss.TLSKeyFile); os.IsNotExist(err) {
+			return appErr
+		}
+	}
+
+	if len(ss.TLSOverwriteCiphers) > 0 {
+		for _, cipher := range ss.TLSOverwriteCiphers {
+			if _, ok := ServerTLSSupportedCiphers[cipher]; !ok {
+				return NewAppError("Config.IsValid", "model.config.is_valid.tls_overwrite_cipher.app_error", map[string]interface{}{"name": cipher}, "", http.StatusBadRequest)
+			}
+		}
+	}
+
 	if *ss.ReadTimeout <= 0 {
 		return NewAppError("Config.IsValid", "model.config.is_valid.read_timeout.app_error", nil, "", http.StatusBadRequest)
 	}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/emoji.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/emoji.go
@ -7,6 +7,7 @@ import (
 	"encoding/json"
 	"io"
 	"net/http"
+	"regexp"
 )

 const (
@ -14,6 +15,8 @@ const (
 	EMOJI_SORT_BY_NAME    = "name"
 )

+var EMOJI_PATTERN = regexp.MustCompile(`:[a-zA-Z0-9_-]+:`)
+
 type Emoji struct {
 	Id        string `json:"id"`
 	CreateAt  int64  `json:"create_at"`
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/file_info.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/file_info.go
@ -85,7 +85,7 @@ func (o *FileInfo) IsValid() *AppError {
 		return NewAppError("FileInfo.IsValid", "model.file_info.is_valid.id.app_error", nil, "", http.StatusBadRequest)
 	}

-	if len(o.CreatorId) != 26 {
+	if len(o.CreatorId) != 26 && o.CreatorId != "nouser" {
 		return NewAppError("FileInfo.IsValid", "model.file_info.is_valid.user_id.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}

--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/integration_action.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/integration_action.go
@ -0,0 +1,294 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/rand"
+	"encoding/asn1"
+	"encoding/base64"
+	"encoding/json"
+	"io"
+	"math/big"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+const (
+	POST_ACTION_TYPE_BUTTON                         = "button"
+	POST_ACTION_TYPE_SELECT                         = "select"
+	INTERACTIVE_DIALOG_TRIGGER_TIMEOUT_MILLISECONDS = 3000
+)
+
+type DoPostActionRequest struct {
+	SelectedOption string `json:"selected_option"`
+}
+
+type PostAction struct {
+	Id          string                 `json:"id"`
+	Name        string                 `json:"name"`
+	Type        string                 `json:"type"`
+	DataSource  string                 `json:"data_source"`
+	Options     []*PostActionOptions   `json:"options"`
+	Integration *PostActionIntegration `json:"integration,omitempty"`
+}
+
+type PostActionOptions struct {
+	Text  string `json:"text"`
+	Value string `json:"value"`
+}
+
+type PostActionIntegration struct {
+	URL     string                 `json:"url,omitempty"`
+	Context map[string]interface{} `json:"context,omitempty"`
+}
+
+type PostActionIntegrationRequest struct {
+	UserId     string                 `json:"user_id"`
+	ChannelId  string                 `json:"channel_id"`
+	TeamId     string                 `json:"team_id"`
+	PostId     string                 `json:"post_id"`
+	TriggerId  string                 `json:"trigger_id"`
+	Type       string                 `json:"type"`
+	DataSource string                 `json:"data_source"`
+	Context    map[string]interface{} `json:"context,omitempty"`
+}
+
+type PostActionIntegrationResponse struct {
+	Update        *Post  `json:"update"`
+	EphemeralText string `json:"ephemeral_text"`
+}
+
+type PostActionAPIResponse struct {
+	Status    string `json:"status"` // needed to maintain backwards compatibility
+	TriggerId string `json:"trigger_id"`
+}
+
+type Dialog struct {
+	CallbackId     string          `json:"callback_id"`
+	Title          string          `json:"title"`
+	IconURL        string          `json:"icon_url"`
+	Elements       []DialogElement `json:"elements"`
+	SubmitLabel    string          `json:"submit_label"`
+	NotifyOnCancel bool            `json:"notify_on_cancel"`
+	State          string          `json:"state"`
+}
+
+type DialogElement struct {
+	DisplayName string               `json:"display_name"`
+	Name        string               `json:"name"`
+	Type        string               `json:"type"`
+	SubType     string               `json:"subtype"`
+	Default     string               `json:"default"`
+	Placeholder string               `json:"placeholder"`
+	HelpText    string               `json:"help_text"`
+	Optional    bool                 `json:"optional"`
+	MinLength   int                  `json:"min_length"`
+	MaxLength   int                  `json:"max_length"`
+	DataSource  string               `json:"data_source"`
+	Options     []*PostActionOptions `json:"options"`
+}
+
+type OpenDialogRequest struct {
+	TriggerId string `json:"trigger_id"`
+	URL       string `json:"url"`
+	Dialog    Dialog `json:"dialog"`
+}
+
+type SubmitDialogRequest struct {
+	Type       string                 `json:"type"`
+	URL        string                 `json:"url,omitempty"`
+	CallbackId string                 `json:"callback_id"`
+	State      string                 `json:"state"`
+	UserId     string                 `json:"user_id"`
+	ChannelId  string                 `json:"channel_id"`
+	TeamId     string                 `json:"team_id"`
+	Submission map[string]interface{} `json:"submission"`
+	Cancelled  bool                   `json:"cancelled"`
+}
+
+type SubmitDialogResponse struct {
+	Errors map[string]string `json:"errors,omitempty"`
+}
+
+func GenerateTriggerId(userId string, s crypto.Signer) (string, string, *AppError) {
+	clientTriggerId := NewId()
+	triggerData := strings.Join([]string{clientTriggerId, userId, strconv.FormatInt(GetMillis(), 10)}, ":") + ":"
+
+	h := crypto.SHA256
+	sum := h.New()
+	sum.Write([]byte(triggerData))
+	signature, err := s.Sign(rand.Reader, sum.Sum(nil), h)
+	if err != nil {
+		return "", "", NewAppError("GenerateTriggerId", "interactive_message.generate_trigger_id.signing_failed", nil, err.Error(), http.StatusInternalServerError)
+	}
+
+	base64Sig := base64.StdEncoding.EncodeToString(signature)
+
+	triggerId := base64.StdEncoding.EncodeToString([]byte(triggerData + base64Sig))
+	return clientTriggerId, triggerId, nil
+}
+
+func (r *PostActionIntegrationRequest) GenerateTriggerId(s crypto.Signer) (string, string, *AppError) {
+	clientTriggerId, triggerId, err := GenerateTriggerId(r.UserId, s)
+	if err != nil {
+		return "", "", err
+	}
+
+	r.TriggerId = triggerId
+	return clientTriggerId, triggerId, nil
+}
+
+func DecodeAndVerifyTriggerId(triggerId string, s *ecdsa.PrivateKey) (string, string, *AppError) {
+	triggerIdBytes, err := base64.StdEncoding.DecodeString(triggerId)
+	if err != nil {
+		return "", "", NewAppError("DecodeAndVerifyTriggerId", "interactive_message.decode_trigger_id.base64_decode_failed", nil, err.Error(), http.StatusBadRequest)
+	}
+
+	split := strings.Split(string(triggerIdBytes), ":")
+	if len(split) != 4 {
+		return "", "", NewAppError("DecodeAndVerifyTriggerId", "interactive_message.decode_trigger_id.missing_data", nil, "", http.StatusBadRequest)
+	}
+
+	clientTriggerId := split[0]
+	userId := split[1]
+	timestampStr := split[2]
+	timestamp, _ := strconv.ParseInt(timestampStr, 10, 64)
+
+	now := GetMillis()
+	if now-timestamp > INTERACTIVE_DIALOG_TRIGGER_TIMEOUT_MILLISECONDS {
+		return "", "", NewAppError("DecodeAndVerifyTriggerId", "interactive_message.decode_trigger_id.expired", map[string]interface{}{"Seconds": INTERACTIVE_DIALOG_TRIGGER_TIMEOUT_MILLISECONDS / 1000}, "", http.StatusBadRequest)
+	}
+
+	signature, err := base64.StdEncoding.DecodeString(split[3])
+	if err != nil {
+		return "", "", NewAppError("DecodeAndVerifyTriggerId", "interactive_message.decode_trigger_id.base64_decode_failed_signature", nil, err.Error(), http.StatusBadRequest)
+	}
+
+	var esig struct {
+		R, S *big.Int
+	}
+
+	if _, err := asn1.Unmarshal([]byte(signature), &esig); err != nil {
+		return "", "", NewAppError("DecodeAndVerifyTriggerId", "interactive_message.decode_trigger_id.signature_decode_failed", nil, err.Error(), http.StatusBadRequest)
+	}
+
+	triggerData := strings.Join([]string{clientTriggerId, userId, timestampStr}, ":") + ":"
+
+	h := crypto.SHA256
+	sum := h.New()
+	sum.Write([]byte(triggerData))
+
+	if !ecdsa.Verify(&s.PublicKey, sum.Sum(nil), esig.R, esig.S) {
+		return "", "", NewAppError("DecodeAndVerifyTriggerId", "interactive_message.decode_trigger_id.verify_signature_failed", nil, "", http.StatusBadRequest)
+	}
+
+	return clientTriggerId, userId, nil
+}
+
+func (r *OpenDialogRequest) DecodeAndVerifyTriggerId(s *ecdsa.PrivateKey) (string, string, *AppError) {
+	return DecodeAndVerifyTriggerId(r.TriggerId, s)
+}
+
+func (r *PostActionIntegrationRequest) ToJson() []byte {
+	b, _ := json.Marshal(r)
+	return b
+}
+
+func PostActionIntegrationRequestFromJson(data io.Reader) *PostActionIntegrationRequest {
+	var o *PostActionIntegrationRequest
+	err := json.NewDecoder(data).Decode(&o)
+	if err != nil {
+		return nil
+	}
+	return o
+}
+
+func (r *PostActionIntegrationResponse) ToJson() []byte {
+	b, _ := json.Marshal(r)
+	return b
+}
+
+func PostActionIntegrationResponseFromJson(data io.Reader) *PostActionIntegrationResponse {
+	var o *PostActionIntegrationResponse
+	err := json.NewDecoder(data).Decode(&o)
+	if err != nil {
+		return nil
+	}
+	return o
+}
+
+func SubmitDialogRequestFromJson(data io.Reader) *SubmitDialogRequest {
+	var o *SubmitDialogRequest
+	err := json.NewDecoder(data).Decode(&o)
+	if err != nil {
+		return nil
+	}
+	return o
+}
+
+func (r *SubmitDialogRequest) ToJson() []byte {
+	b, _ := json.Marshal(r)
+	return b
+}
+
+func SubmitDialogResponseFromJson(data io.Reader) *SubmitDialogResponse {
+	var o *SubmitDialogResponse
+	err := json.NewDecoder(data).Decode(&o)
+	if err != nil {
+		return nil
+	}
+	return o
+}
+
+func (r *SubmitDialogResponse) ToJson() []byte {
+	b, _ := json.Marshal(r)
+	return b
+}
+
+func (o *Post) StripActionIntegrations() {
+	attachments := o.Attachments()
+	if o.Props["attachments"] != nil {
+		o.Props["attachments"] = attachments
+	}
+	for _, attachment := range attachments {
+		for _, action := range attachment.Actions {
+			action.Integration = nil
+		}
+	}
+}
+
+func (o *Post) GetAction(id string) *PostAction {
+	for _, attachment := range o.Attachments() {
+		for _, action := range attachment.Actions {
+			if action.Id == id {
+				return action
+			}
+		}
+	}
+	return nil
+}
+
+func (o *Post) GenerateActionIds() {
+	if o.Props["attachments"] != nil {
+		o.Props["attachments"] = o.Attachments()
+	}
+	if attachments, ok := o.Props["attachments"].([]*SlackAttachment); ok {
+		for _, attachment := range attachments {
+			for _, action := range attachment.Actions {
+				if action.Id == "" {
+					action.Id = NewId()
+				}
+			}
+		}
+	}
+}
+
+func DoPostActionRequestFromJson(data io.Reader) *DoPostActionRequest {
+	var o *DoPostActionRequest
+	json.NewDecoder(data).Decode(&o)
+	return o
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/job.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/job.go
@ -17,6 +17,7 @@ const (
 	JOB_TYPE_ELASTICSEARCH_POST_AGGREGATION = "elasticsearch_post_aggregation"
 	JOB_TYPE_LDAP_SYNC                      = "ldap_sync"
 	JOB_TYPE_MIGRATIONS                     = "migrations"
+	JOB_TYPE_PLUGINS                        = "plugins"

 	JOB_STATUS_PENDING          = "pending"
 	JOB_STATUS_IN_PROGRESS      = "in_progress"
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/license.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/license.go
@ -21,12 +21,14 @@ type LicenseRecord struct {
 }

 type License struct {
-	Id        string    `json:"id"`
-	IssuedAt  int64     `json:"issued_at"`
-	StartsAt  int64     `json:"starts_at"`
-	ExpiresAt int64     `json:"expires_at"`
-	Customer  *Customer `json:"customer"`
-	Features  *Features `json:"features"`
+	Id           string    `json:"id"`
+	IssuedAt     int64     `json:"issued_at"`
+	StartsAt     int64     `json:"starts_at"`
+	ExpiresAt    int64     `json:"expires_at"`
+	Customer     *Customer `json:"customer"`
+	Features     *Features `json:"features"`
+	SkuName      string    `json:"sku_name"`
+	SkuShortName string    `json:"sku_short_name"`
 }

 type Customer struct {
@ -57,7 +59,7 @@ type Features struct {
 	CustomPermissionsSchemes  *bool `json:"custom_permissions_schemes"`
 	CustomTermsOfService      *bool `json:"custom_terms_of_service"`

-	// after we enabled more features for webrtc we'll need to control them with this
+	// after we enabled more features we'll need to control them with this
 	FutureFeatures *bool `json:"future_features"`
 }

--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/manifest.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/manifest.go
@ -5,6 +5,7 @@ package model

 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@ -12,6 +13,7 @@ import (
 	"path/filepath"
 	"strings"

+	"github.com/blang/semver"
 	"gopkg.in/yaml.v2"
 )

@ -45,6 +47,8 @@ type PluginSetting struct {
 	//
 	// "text" will result in a string setting that can be typed in manually.
 	//
+	// "longtext" will result in a multi line string that can be typed in manually.
+	//
 	// "username" will result in a text setting that will autocomplete to a username.
 	Type string `json:"type" yaml:"type"`

@ -109,6 +113,11 @@ type Manifest struct {
 	// A version number for your plugin. Semantic versioning is recommended: http://semver.org
 	Version string `json:"version" yaml:"version"`

+	// The minimum Mattermost server version required for your plugin.
+	//
+	// Minimum server version: 5.6
+	MinServerVersion string `json:"min_server_version,omitempty" yaml:"min_server_version,omitempty"`
+
 	// Server defines the server-side portion of your plugin.
 	Server *ManifestServer `json:"server,omitempty" yaml:"server,omitempty"`

@ -240,6 +249,18 @@ func (m *Manifest) HasWebapp() bool {
 	return m.Webapp != nil
 }

+func (m *Manifest) MeetMinServerVersion(serverVersion string) (bool, error) {
+	minServerVersion, err := semver.Parse(m.MinServerVersion)
+	if err != nil {
+		return false, errors.New("failed to parse MinServerVersion")
+	}
+	sv := semver.MustParse(serverVersion)
+	if sv.LT(minServerVersion) {
+		return false, nil
+	}
+	return true, nil
+}
+
 // FindManifest will find and parse the manifest in a given directory.
 //
 // In all cases other than a does-not-exist error, path is set to the path of the manifest file that was
@ -252,25 +273,23 @@ func FindManifest(dir string) (manifest *Manifest, path string, err error) {
 		f, ferr := os.Open(path)
 		if ferr != nil {
 			if !os.IsNotExist(ferr) {
-				err = ferr
-				return
+				return nil, "", ferr
 			}
 			continue
 		}
 		b, ioerr := ioutil.ReadAll(f)
 		f.Close()
 		if ioerr != nil {
-			err = ioerr
-			return
+			return nil, path, ioerr
 		}
 		var parsed Manifest
 		err = yaml.Unmarshal(b, &parsed)
 		if err != nil {
-			return
+			return nil, path, err
 		}
 		manifest = &parsed
 		manifest.Id = strings.ToLower(manifest.Id)
-		return
+		return manifest, path, nil
 	}

 	path = filepath.Join(dir, "plugin.json")
@ -279,16 +298,15 @@ func FindManifest(dir string) (manifest *Manifest, path string, err error) {
 		if os.IsNotExist(ferr) {
 			path = ""
 		}
-		err = ferr
-		return
+		return nil, path, ferr
 	}
 	defer f.Close()
 	var parsed Manifest
 	err = json.NewDecoder(f).Decode(&parsed)
 	if err != nil {
-		return
+		return nil, path, err
 	}
 	manifest = &parsed
 	manifest.Id = strings.ToLower(manifest.Id)
-	return
+	return manifest, path, nil
 }
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/plugin_key_value.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/plugin_key_value.go
@ -17,6 +17,7 @@ type PluginKeyValue struct {
 	PluginId string `json:"plugin_id"`
 	Key      string `json:"key" db:"PKey"`
 	Value    []byte `json:"value" db:"PValue"`
+	ExpireAt int64  `json:"expire_at"`
 }

 func (kv *PluginKeyValue) IsValid() *AppError {
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/post.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/post.go
@ -50,8 +50,6 @@ const (
 	PROPS_ADD_CHANNEL_MEMBER    = "add_channel_member"
 	POST_PROPS_ADDED_USER_ID    = "addedUserId"
 	POST_PROPS_DELETE_BY        = "deleteBy"
-	POST_ACTION_TYPE_BUTTON     = "button"
-	POST_ACTION_TYPE_SELECT     = "select"
 )

 type Post struct {
@ -81,6 +79,9 @@ type Post struct {
 	FileIds       StringArray     `json:"file_ids,omitempty"`
 	PendingPostId string          `json:"pending_post_id" db:"-"`
 	HasReactions  bool            `json:"has_reactions,omitempty"`
+
+	// Transient data populated before sending a post to the client
+	Metadata *PostMetadata `json:"metadata,omitempty" db:"-"`
 }

 type PostEphemeral struct {
@ -132,48 +133,16 @@ type PostForIndexing struct {
 	ParentCreateAt *int64 `json:"parent_create_at"`
 }

-type DoPostActionRequest struct {
-	SelectedOption string `json:"selected_option"`
-}
-
-type PostAction struct {
-	Id          string                 `json:"id"`
-	Name        string                 `json:"name"`
-	Type        string                 `json:"type"`
-	DataSource  string                 `json:"data_source"`
-	Options     []*PostActionOptions   `json:"options"`
-	Integration *PostActionIntegration `json:"integration,omitempty"`
-}
-
-type PostActionOptions struct {
-	Text  string `json:"text"`
-	Value string `json:"value"`
-}
-
-type PostActionIntegration struct {
-	URL     string          `json:"url,omitempty"`
-	Context StringInterface `json:"context,omitempty"`
-}
-
-type PostActionIntegrationRequest struct {
-	UserId     string          `json:"user_id"`
-	ChannelId  string          `json:"channel_id"`
-	TeamId     string          `json:"team_id"`
-	PostId     string          `json:"post_id"`
-	Type       string          `json:"type"`
-	DataSource string          `json:"data_source"`
-	Context    StringInterface `json:"context,omitempty"`
-}
-
-type PostActionIntegrationResponse struct {
-	Update        *Post  `json:"update"`
-	EphemeralText string `json:"ephemeral_text"`
+// Clone shallowly copies the post.
+func (o *Post) Clone() *Post {
+	copy := *o
+	return &copy
 }

 func (o *Post) ToJson() string {
-	copy := *o
+	copy := o.Clone()
 	copy.StripActionIntegrations()
-	b, _ := json.Marshal(&copy)
+	b, _ := json.Marshal(copy)
 	return string(b)
 }

@ -407,34 +376,6 @@ func (o *Post) ChannelMentions() []string {
 	return ChannelMentions(o.Message)
 }

-func (r *PostActionIntegrationRequest) ToJson() string {
-	b, _ := json.Marshal(r)
-	return string(b)
-}
-
-func PostActionIntegrationRequesteFromJson(data io.Reader) *PostActionIntegrationRequest {
-	var o *PostActionIntegrationRequest
-	err := json.NewDecoder(data).Decode(&o)
-	if err != nil {
-		return nil
-	}
-	return o
-}
-
-func (r *PostActionIntegrationResponse) ToJson() string {
-	b, _ := json.Marshal(r)
-	return string(b)
-}
-
-func PostActionIntegrationResponseFromJson(data io.Reader) *PostActionIntegrationResponse {
-	var o *PostActionIntegrationResponse
-	err := json.NewDecoder(data).Decode(&o)
-	if err != nil {
-		return nil
-	}
-	return o
-}
-
 func (o *Post) Attachments() []*SlackAttachment {
 	if attachments, ok := o.Props["attachments"].([]*SlackAttachment); ok {
 		return attachments
@ -453,44 +394,6 @@ func (o *Post) Attachments() []*SlackAttachment {
 	return ret
 }

-func (o *Post) StripActionIntegrations() {
-	attachments := o.Attachments()
-	if o.Props["attachments"] != nil {
-		o.Props["attachments"] = attachments
-	}
-	for _, attachment := range attachments {
-		for _, action := range attachment.Actions {
-			action.Integration = nil
-		}
-	}
-}
-
-func (o *Post) GetAction(id string) *PostAction {
-	for _, attachment := range o.Attachments() {
-		for _, action := range attachment.Actions {
-			if action.Id == id {
-				return action
-			}
-		}
-	}
-	return nil
-}
-
-func (o *Post) GenerateActionIds() {
-	if o.Props["attachments"] != nil {
-		o.Props["attachments"] = o.Attachments()
-	}
-	if attachments, ok := o.Props["attachments"].([]*SlackAttachment); ok {
-		for _, attachment := range attachments {
-			for _, action := range attachment.Actions {
-				if action.Id == "" {
-					action.Id = NewId()
-				}
-			}
-		}
-	}
-}
-
 var markdownDestinationEscaper = strings.NewReplacer(
 	`\`, `\\`,
 	`<`, `\<`,
@ -502,12 +405,12 @@ var markdownDestinationEscaper = strings.NewReplacer(
 // WithRewrittenImageURLs returns a new shallow copy of the post where the message has been
 // rewritten via RewriteImageURLs.
 func (o *Post) WithRewrittenImageURLs(f func(string) string) *Post {
-	copy := *o
+	copy := o.Clone()
 	copy.Message = RewriteImageURLs(o.Message, f)
 	if copy.MessageSource == "" && copy.Message != o.Message {
 		copy.MessageSource = o.Message
 	}
-	return &copy
+	return copy
 }

 func (o *PostEphemeral) ToUnsanitizedJson() string {
@ -515,12 +418,6 @@ func (o *PostEphemeral) ToUnsanitizedJson() string {
 	return string(b)
 }

-func DoPostActionRequestFromJson(data io.Reader) *DoPostActionRequest {
-	var o *DoPostActionRequest
-	json.NewDecoder(data).Decode(&o)
-	return o
-}
-
 // RewriteImageURLs takes a message and returns a copy that has all of the image URLs replaced
 // according to the function f. For each image URL, f will be invoked, and the resulting markdown
 // will contain the URL returned by that invocation instead.
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/post_embed.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/post_embed.go
@ -0,0 +1,22 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+const (
+	POST_EMBED_IMAGE              PostEmbedType = "image"
+	POST_EMBED_MESSAGE_ATTACHMENT PostEmbedType = "message_attachment"
+	POST_EMBED_OPENGRAPH          PostEmbedType = "opengraph"
+)
+
+type PostEmbedType string
+
+type PostEmbed struct {
+	Type PostEmbedType `json:"type"`
+
+	// The URL of the embedded content. Used for image and OpenGraph embeds.
+	URL string `json:"url,omitempty"`
+
+	// Any additional data for the embedded content. Only used for OpenGraph embeds.
+	Data interface{} `json:"data,omitempty"`
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/post_metadata.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/post_metadata.go
@ -0,0 +1,30 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+type PostMetadata struct {
+	// Embeds holds information required to render content embedded in the post. This includes the OpenGraph metadata
+	// for links in the post.
+	Embeds []*PostEmbed `json:"embeds,omitempty"`
+
+	// Emojis holds all custom emojis used in the post or used in reaction to the post.
+	Emojis []*Emoji `json:"emojis,omitempty"`
+
+	// Files holds information about the file attachments on the post.
+	Files []*FileInfo `json:"files,omitempty"`
+
+	// Images holds the dimensions of all external images in the post as a map of the image URL to its diemsnions.
+	// This includes image embeds (when the message contains a plaintext link to an image), Markdown images, images
+	// contained in the OpenGraph metadata, and images contained in message attachments. It does not contain
+	// the dimensions of any file attachments as those are stored in FileInfos.
+	Images map[string]*PostImage `json:"images,omitempty"`
+
+	// Reactions holds reactions made to the post.
+	Reactions []*Reaction `json:"reactions,omitempty"`
+}
+
+type PostImage struct {
+	Width  int `json:"width"`
+	Height int `json:"height"`
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/preference.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/preference.go
@ -42,6 +42,11 @@ const (

 	PREFERENCE_EMAIL_INTERVAL_NO_BATCHING_SECONDS = "30"  // the "immediate" setting is actually 30s
 	PREFERENCE_EMAIL_INTERVAL_BATCHING_SECONDS    = "900" // fifteen minutes is 900 seconds
+	PREFERENCE_EMAIL_INTERVAL_IMMEDIATELY         = "immediately"
+	PREFERENCE_EMAIL_INTERVAL_FIFTEEN             = "fifteen"
+	PREFERENCE_EMAIL_INTERVAL_FIFTEEN_AS_SECONDS  = "900"
+	PREFERENCE_EMAIL_INTERVAL_HOUR                = "hour"
+	PREFERENCE_EMAIL_INTERVAL_HOUR_AS_SECONDS     = "3600"
 )

 type Preference struct {
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/saml.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/saml.go
@ -10,7 +10,7 @@ import (

 const (
 	USER_AUTH_SERVICE_SAML      = "saml"
-	USER_AUTH_SERVICE_SAML_TEXT = "With SAML"
+	USER_AUTH_SERVICE_SAML_TEXT = "SAML"
 )

 type SamlAuthRequest struct {
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/slack_attachment.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/slack_attachment.go
@ -64,7 +64,9 @@ func StringifySlackFieldValue(a []*SlackAttachment) []*SlackAttachment {
 // This method only parses and processes the attachments,
 // all else should be set in the post which is passed
 func ParseSlackAttachment(post *Post, attachments []*SlackAttachment) {
-	post.Type = POST_SLACK_ATTACHMENT
+	if post.Type == "" {
+		post.Type = POST_SLACK_ATTACHMENT
+	}

 	for _, attachment := range attachments {
 		attachment.Text = ParseSlackLinksToMarkdown(attachment.Text)
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/terms_of_service.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/terms_of_service.go
@ -11,7 +11,6 @@ import (
 	"unicode/utf8"
 )

-// we only ever need the latest version of terms of service
 const TERMS_OF_SERVICE_CACHE_SIZE = 1

 type TermsOfService struct {
@ -58,7 +57,7 @@ func InvalidTermsOfServiceError(fieldName string, termsOfServiceId string) *AppE
 	if termsOfServiceId != "" {
 		details = "terms_of_service_id=" + termsOfServiceId
 	}
-	return NewAppError("TermsOfServiceStore.IsValid", id, map[string]interface{}{"MaxLength": POST_MESSAGE_MAX_RUNES_V2}, details, http.StatusBadRequest)
+	return NewAppError("TermsOfService.IsValid", id, map[string]interface{}{"MaxLength": POST_MESSAGE_MAX_RUNES_V2}, details, http.StatusBadRequest)
 }

 func (t *TermsOfService) PreSave() {
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/user.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/user.go
@ -48,33 +48,32 @@ const (
 )

 type User struct {
-	Id                       string    `json:"id"`
-	CreateAt                 int64     `json:"create_at,omitempty"`
-	UpdateAt                 int64     `json:"update_at,omitempty"`
-	DeleteAt                 int64     `json:"delete_at"`
-	Username                 string    `json:"username"`
-	Password                 string    `json:"password,omitempty"`
-	AuthData                 *string   `json:"auth_data,omitempty"`
-	AuthService              string    `json:"auth_service"`
-	Email                    string    `json:"email"`
-	EmailVerified            bool      `json:"email_verified,omitempty"`
-	Nickname                 string    `json:"nickname"`
-	FirstName                string    `json:"first_name"`
-	LastName                 string    `json:"last_name"`
-	Position                 string    `json:"position"`
-	Roles                    string    `json:"roles"`
-	AllowMarketing           bool      `json:"allow_marketing,omitempty"`
-	Props                    StringMap `json:"props,omitempty"`
-	NotifyProps              StringMap `json:"notify_props,omitempty"`
-	LastPasswordUpdate       int64     `json:"last_password_update,omitempty"`
-	LastPictureUpdate        int64     `json:"last_picture_update,omitempty"`
-	FailedAttempts           int       `json:"failed_attempts,omitempty"`
-	Locale                   string    `json:"locale"`
-	Timezone                 StringMap `json:"timezone"`
-	MfaActive                bool      `json:"mfa_active,omitempty"`
-	MfaSecret                string    `json:"mfa_secret,omitempty"`
-	LastActivityAt           int64     `db:"-" json:"last_activity_at,omitempty"`
-	AcceptedTermsOfServiceId string    `json:"accepted_terms_of_service_id,omitempty"` // TODO remove this field when new TOS user action table is created
+	Id                 string    `json:"id"`
+	CreateAt           int64     `json:"create_at,omitempty"`
+	UpdateAt           int64     `json:"update_at,omitempty"`
+	DeleteAt           int64     `json:"delete_at"`
+	Username           string    `json:"username"`
+	Password           string    `json:"password,omitempty"`
+	AuthData           *string   `json:"auth_data,omitempty"`
+	AuthService        string    `json:"auth_service"`
+	Email              string    `json:"email"`
+	EmailVerified      bool      `json:"email_verified,omitempty"`
+	Nickname           string    `json:"nickname"`
+	FirstName          string    `json:"first_name"`
+	LastName           string    `json:"last_name"`
+	Position           string    `json:"position"`
+	Roles              string    `json:"roles"`
+	AllowMarketing     bool      `json:"allow_marketing,omitempty"`
+	Props              StringMap `json:"props,omitempty"`
+	NotifyProps        StringMap `json:"notify_props,omitempty"`
+	LastPasswordUpdate int64     `json:"last_password_update,omitempty"`
+	LastPictureUpdate  int64     `json:"last_picture_update,omitempty"`
+	FailedAttempts     int       `json:"failed_attempts,omitempty"`
+	Locale             string    `json:"locale"`
+	Timezone           StringMap `json:"timezone"`
+	MfaActive          bool      `json:"mfa_active,omitempty"`
+	MfaSecret          string    `json:"mfa_secret,omitempty"`
+	LastActivityAt     int64     `db:"-" json:"last_activity_at,omitempty"`
 }

 type UserPatch struct {
@ -499,11 +498,7 @@ func (u *User) IsSAMLUser() bool {
 }

 func (u *User) GetPreferredTimezone() string {
-	if u.Timezone["useAutomaticTimezone"] == "true" {
-		return u.Timezone["automaticTimezone"]
-	}
-
-	return u.Timezone["manualTimezone"]
+	return GetPreferredTimezone(u.Timezone)
 }

 // UserFromJson will decode the input and return a User
@ -639,3 +634,9 @@ func IsValidCommentsNotifyLevel(notifyLevel string) bool {
 		notifyLevel == COMMENTS_NOTIFY_ROOT ||
 		notifyLevel == COMMENTS_NOTIFY_NEVER
 }
+
+func IsValidEmailBatchingInterval(emailInterval string) bool {
+	return emailInterval == PREFERENCE_EMAIL_INTERVAL_IMMEDIATELY ||
+		emailInterval == PREFERENCE_EMAIL_INTERVAL_FIFTEEN ||
+		emailInterval == PREFERENCE_EMAIL_INTERVAL_HOUR
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/user_search.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/user_search.go
@ -8,6 +8,10 @@ import (
 	"io"
 )

+const USER_SEARCH_MAX_LIMIT = 1000
+const USER_SEARCH_DEFAULT_LIMIT = 100
+
+// UserSearch captures the parameters provided by a client for initiating a user search.
 type UserSearch struct {
 	Term           string `json:"term"`
 	TeamId         string `json:"team_id"`
@ -16,17 +20,38 @@ type UserSearch struct {
 	NotInChannelId string `json:"not_in_channel_id"`
 	AllowInactive  bool   `json:"allow_inactive"`
 	WithoutTeam    bool   `json:"without_team"`
+	Limit          int    `json:"limit"`
 }

 // ToJson convert a User to a json string
-func (u *UserSearch) ToJson() string {
+func (u *UserSearch) ToJson() []byte {
 	b, _ := json.Marshal(u)
-	return string(b)
+	return b
 }

 // UserSearchFromJson will decode the input and return a User
 func UserSearchFromJson(data io.Reader) *UserSearch {
 	var us *UserSearch
 	json.NewDecoder(data).Decode(&us)
+
+	if us.Limit == 0 {
+		us.Limit = USER_SEARCH_DEFAULT_LIMIT
+	}
+
 	return us
 }
+
+// UserSearchOptions captures internal parameters derived from the user's permissions and a
+// UserSearch request.
+type UserSearchOptions struct {
+	// IsAdmin tracks whether or not the search is being conducted by an administrator.
+	IsAdmin bool
+	// AllowEmails allows search to examine the emails of users.
+	AllowEmails bool
+	// AllowFullNames allows search to examine the full names of users, vs. just usernames and nicknames.
+	AllowFullNames bool
+	// AllowInactive configures whether or not to return inactive users in the search results.
+	AllowInactive bool
+	// Limit limits the total number of results returned.
+	Limit int
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/user_terms_of_service.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/user_terms_of_service.go
@ -0,0 +1,61 @@
+// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+)
+
+type UserTermsOfService struct {
+	UserId           string `json:"user_id"`
+	TermsOfServiceId string `json:"terms_of_service_id"`
+	CreateAt         int64  `json:"create_at"`
+}
+
+func (ut *UserTermsOfService) IsValid() *AppError {
+	if len(ut.UserId) != 26 {
+		return InvalidUserTermsOfServiceError("user_id", ut.UserId)
+	}
+
+	if len(ut.TermsOfServiceId) != 26 {
+		return InvalidUserTermsOfServiceError("terms_of_service_id", ut.UserId)
+	}
+
+	if ut.CreateAt == 0 {
+		return InvalidUserTermsOfServiceError("create_at", ut.UserId)
+	}
+
+	return nil
+}
+
+func (ut *UserTermsOfService) ToJson() string {
+	b, _ := json.Marshal(ut)
+	return string(b)
+}
+
+func (ut *UserTermsOfService) PreSave() {
+	if ut.UserId == "" {
+		ut.UserId = NewId()
+	}
+
+	ut.CreateAt = GetMillis()
+}
+
+func UserTermsOfServiceFromJson(data io.Reader) *UserTermsOfService {
+	var userTermsOfService *UserTermsOfService
+	json.NewDecoder(data).Decode(&userTermsOfService)
+	return userTermsOfService
+}
+
+func InvalidUserTermsOfServiceError(fieldName string, userTermsOfServiceId string) *AppError {
+	id := fmt.Sprintf("model.user_terms_of_service.is_valid.%s.app_error", fieldName)
+	details := ""
+	if userTermsOfServiceId != "" {
+		details = "user_terms_of_service_user_id=" + userTermsOfServiceId
+	}
+	return NewAppError("UserTermsOfService.IsValid", id, nil, details, http.StatusBadRequest)
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/utils.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/utils.go
@ -564,3 +564,26 @@ func IsDomainName(s string) bool {

 	return ok
 }
+
+func RemoveDuplicateStrings(in []string) []string {
+	out := []string{}
+	seen := make(map[string]bool, len(in))
+
+	for _, item := range in {
+		if !seen[item] {
+			out = append(out, item)
+
+			seen[item] = true
+		}
+	}
+
+	return out
+}
+
+func GetPreferredTimezone(timezone StringMap) string {
+	if timezone["useAutomaticTimezone"] == "true" {
+		return timezone["automaticTimezone"]
+	}
+
+	return timezone["manualTimezone"]
+}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/version.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/version.go
@ -13,6 +13,8 @@ import (
 // It should be maintained in chronological order with most current
 // release at the front of the list.
 var versions = []string{
+	"5.6.0",
+	"5.5.0",
 	"5.4.0",
 	"5.3.0",
 	"5.2.0",
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/webrtc.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/webrtc.go
@ -1,39 +0,0 @@
-// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package model
-
-import (
-	"encoding/json"
-	"io"
-)
-
-type WebrtcInfoResponse struct {
-	Token        string `json:"token"`
-	GatewayUrl   string `json:"gateway_url"`
-	StunUri      string `json:"stun_uri,omitempty"`
-	TurnUri      string `json:"turn_uri,omitempty"`
-	TurnPassword string `json:"turn_password,omitempty"`
-	TurnUsername string `json:"turn_username,omitempty"`
-}
-
-type GatewayResponse struct {
-	Status string `json:"janus"`
-}
-
-func GatewayResponseFromJson(data io.Reader) *GatewayResponse {
-	var o *GatewayResponse
-	json.NewDecoder(data).Decode(&o)
-	return o
-}
-
-func (o *WebrtcInfoResponse) ToJson() string {
-	b, _ := json.Marshal(o)
-	return string(b)
-}
-
-func WebrtcInfoResponseFromJson(data io.Reader) *WebrtcInfoResponse {
-	var o *WebrtcInfoResponse
-	json.NewDecoder(data).Decode(&o)
-	return o
-}
--- a/build/manifest/vendor/github.com/mattermost/mattermost-server/model/websocket_message.go
+++ b/build/manifest/vendor/github.com/mattermost/mattermost-server/model/websocket_message.go
@ -37,7 +37,6 @@ const (
 	WEBSOCKET_EVENT_EPHEMERAL_MESSAGE       = "ephemeral_message"
 	WEBSOCKET_EVENT_STATUS_CHANGE           = "status_change"
 	WEBSOCKET_EVENT_HELLO                   = "hello"
-	WEBSOCKET_EVENT_WEBRTC                  = "webrtc"
 	WEBSOCKET_AUTHENTICATION_CHALLENGE      = "authentication_challenge"
 	WEBSOCKET_EVENT_REACTION_ADDED          = "reaction_added"
 	WEBSOCKET_EVENT_REACTION_REMOVED        = "reaction_removed"
@ -50,6 +49,7 @@ const (
 	WEBSOCKET_EVENT_ROLE_UPDATED            = "role_updated"
 	WEBSOCKET_EVENT_LICENSE_CHANGED         = "license_changed"
 	WEBSOCKET_EVENT_CONFIG_CHANGED          = "config_changed"
+	WEBSOCKET_EVENT_OPEN_DIALOG             = "open_dialog"
 )

 type WebSocketMessage interface {
--- a/server/Gopkg.lock
+++ b/server/Gopkg.lock
@ -1,6 +1,14 @@
 # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.


+[[projects]]
+  digest = "1:aba270497eb2d49f5cba6f4162d524b9a1195a24cbce8be20bf56a0051f47deb"
+  name = "github.com/blang/semver"
+  packages = ["."]
+  pruneopts = "NUT"
+  revision = "2ee87856327ba09384cabd113bc6b5d174e9ec0f"
+  version = "v3.5.1"
+
 [[projects]]
  digest = "1:ffe9824d294da03b391f44e1ae8281281b4afc1bdaa9588c9097785e3af10cec"
  name = "github.com/davecgh/go-spew"
@ -9,6 +17,14 @@
  revision = "8991bc29aa16c548c550c7ff78260e27b9ab7c73"
  version = "v1.1.1"

+[[projects]]
+  branch = "master"
+  digest = "1:665c8850f673be8d358fe61ab00412049e685202aa7466ae5c72ad50d89c84f7"
+  name = "github.com/dyatlov/go-opengraph"
+  packages = ["opengraph"]
+  pruneopts = "NUT"
+  revision = "816b6608b3c8c1e871bc9cf777f390e2532081fe"
+
 [[projects]]
  digest = "1:1b91ae0dc69a41d4c2ed23ea5cffb721ea63f5037ca4b81e6d6771fbb8f45129"
  name = "github.com/fsnotify/fsnotify"
@ -48,18 +64,18 @@
  revision = "a51a35ae3232254685f26a0b6d995ca0e81e2248"

 [[projects]]
-  digest = "1:58ba5285227b0f635652cd4aa82c4cfd00b590191eadd823462f0c9f64e3ae07"
+  digest = "1:ce8deaa2f422b7315ee4fa91f29963ed24f33eb1e1f921fe9f27ce7987776c01"
  name = "github.com/hashicorp/go-hclog"
  packages = ["."]
  pruneopts = "NUT"
-  revision = "69ff559dc25f3b435631604f573a5fa1efdb6433"
+  revision = "e45cbeb79f0411b1cfedd3f226ff69d5d433c762"

 [[projects]]
-  digest = "1:532090ffc3b05a7e4c0229dd2698d79149f2e0683df993224a8b202f607fb605"
+  digest = "1:af00abbd22cc527703068245c819a5f53567918f8c088157a4c01dd6244b58fb"
  name = "github.com/hashicorp/go-plugin"
  packages = ["."]
  pruneopts = "NUT"
-  revision = "e8d22c780116115ae5624720c9af0c97afe4f551"
+  revision = "a4620f9913d19f03a6bf19b2f304daaaf83ea130"

 [[projects]]
  digest = "1:11c6c696067d3127ecf332b10f89394d386d9083f82baf71f40f2da31841a009"
@ -97,7 +113,7 @@
  version = "v1.8.0"

 [[projects]]
-  digest = "1:fcaa0c4871e4b49fb30d986e688c069328c042eae6ef89d0ead9882d2d450648"
+  digest = "1:7496e8dfee311245ba337d464a50a50af13ab59a7fde3c474c9933671c9a6eaa"
  name = "github.com/mattermost/mattermost-server"
  packages = [
    "einterfaces",
@ -109,8 +125,8 @@
    "utils/markdown",
  ]
  pruneopts = "NUT"
-  revision = "d5b613cb1bbdaa856fa126e7102d94783b9e80b6"
-  version = "v5.4.0"
+  revision = "0c1207215852a8726c3f09dea157d597fec368df"
+  version = "v5.6.0"

 [[projects]]
  branch = "mattermost"
@ -277,10 +293,12 @@

 [[projects]]
  branch = "master"
-  digest = "1:d39e451e542c7c064d7e29050eb50993a7484d4a3b538387c0f2ac32b5b9cdd8"
+  digest = "1:43144a8b3203f89adbed21f991f29fb5c9fc173b1e8e1c27fc1888f6a25b9618"
  name = "golang.org/x/net"
  packages = [
    "context",
+    "html",
+    "html/atom",
    "http/httpguts",
    "http2",
    "http2/hpack",
--- a/server/Gopkg.toml
+++ b/server/Gopkg.toml
@ -5,7 +5,7 @@

 [[constraint]]
  name = "github.com/mattermost/mattermost-server"
-  version = "~5.4.0"
+  version = "~5.6.0"

 [[constraint]]
  name = "github.com/stretchr/testify"