PLT-1378 Initial version of emoji reactions (#4520)

* Refactored emoji.json to support multiple aliases and emoji categories

* Added custom category to emoji.jsx and stabilized all fields

* Removed conflicting aliases for :mattermost: and :ca:

* fixup after store changes

* Added emoji reactions

* Removed reactions for an emoji when that emoji is deleted

* Fixed incorrect test case

* Renamed ReactionList to ReactionListView

* Fixed 👍 and 👎 not showing up as possible reactions

* Removed text emoticons from emoji reaction autocomplete

* Changed emoji reactions to be sorted by the order that they were first created

* Set a maximum number of listeners for the ReactionStore

* Removed unused code from Textbox component

* Fixed reaction permissions

* Changed error code when trying to modify reactions for another user

* Fixed merge conflicts

* Properly applied theme colours to reactions

* Fixed ESLint and gofmt errors

* Fixed ReactionListContainer to properly update when its post prop changes

* Removed unnecessary escape characters from reaction regexes

* Shared reaction message pattern between CreatePost and CreateComment

* Removed an unnecessary select query when saving a reaction

* Changed reactions route to be under /reactions

* Fixed copyright dates on newly added files

* Removed debug code that prevented all unit tests from being ran

* Cleaned up unnecessary code for reactions

* Renamed ReactionStore.List to ReactionStore.GetForPost

store/sql_upgrade.go

@@ -15,6 +15,7 @@ import (
 )
 
 const (
+	VERSION_3_6_0 = "3.6.0"
 	VERSION_3_5_0 = "3.5.0"
 	VERSION_3_4_0 = "3.4.0"
 	VERSION_3_3_0 = "3.3.0"
@@ -37,6 +38,7 @@ func UpgradeDatabase(sqlStore *SqlStore) {
 	UpgradeDatabaseToVersion33(sqlStore)
 	UpgradeDatabaseToVersion34(sqlStore)
 	UpgradeDatabaseToVersion35(sqlStore)
+	UpgradeDatabaseToVersion36(sqlStore)
 
 	// If the SchemaVersion is empty this this is the first time it has ran
 	// so lets set it to the current version.
@@ -210,3 +212,17 @@ func UpgradeDatabaseToVersion35(sqlStore *SqlStore) {
 		saveSchemaVersion(sqlStore, VERSION_3_5_0)
 	}
 }
+
+func UpgradeDatabaseToVersion36(sqlStore *SqlStore) {
+	//if shouldPerformUpgrade(sqlStore, VERSION_3_5_0, VERSION_3_6_0) {
+
+	sqlStore.CreateColumnIfNotExists("Posts", "HasReactions", "tinyint", "boolean", "0")
+
+	// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+	// TODO FIXME UNCOMMENT WHEN WE DO RELEASE
+	// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+	//sqlStore.Session().RemoveAllSessions()
+
+	//saveSchemaVersion(sqlStore, VERSION_3_6_0)
+	//}
+}