PLT-1752/PLT-3567/PLT-3998 Highlighting links in search, unit tests for autolinking (#3865)

* Added highlighting to links when their URL includes the search term

* Decoupling UserStore from react-router to allow for unit tests involving it

* PLT-3998 Added SiteURL as an option to be passed into the text formatting code

* Removed reference to PreferenceStore and window from TextFormatting

* Refactored TextFormatting to remove remaining browser-only code

* Updated ChannelHeader and MessageWrapper to match the changes to TextFormatting

* Increased max listeners for Preference and Emoji stores

* PLT-3832 Added automated unit tests for autolinking

* PLT-3567 Rerender posts when mention keywords change

* Updated RHS and search to match the changes to TextFormatting

* Broke TextFormatting's dependency on the UserStore

webapp/stores/emoji_store.jsx

@@ -17,6 +17,8 @@ class EmojiStore extends EventEmitter {
 
         this.dispatchToken = AppDispatcher.register(this.handleEventPayload.bind(this));
 
+        this.setMaxListeners(600);
+
         this.emojis = new Map(EmojiJson);
         this.systemEmojis = new Map(EmojiJson);
 

webapp/stores/preference_store.jsx

@@ -8,7 +8,7 @@ import EventEmitter from 'events';
 
 const CHANGE_EVENT = 'change';
 
-class PreferenceStoreClass extends EventEmitter {
+class PreferenceStore extends EventEmitter {
     constructor() {
         super();
 
@@ -17,7 +17,7 @@ class PreferenceStoreClass extends EventEmitter {
 
         this.preferences = new Map();
 
-        this.setMaxListeners(20);
+        this.setMaxListeners(600);
     }
 
     getKey(category, name) {
@@ -144,7 +144,5 @@ class PreferenceStoreClass extends EventEmitter {
     }
 }
 
-const PreferenceStore = new PreferenceStoreClass();
-PreferenceStore.setMaxListeners(25);
-export default PreferenceStore;
-global.window.PreferenceStore = PreferenceStore;
+global.PreferenceStore = new PreferenceStore();
+export default global.PreferenceStore;

webapp/stores/user_store.jsx

@@ -334,7 +334,7 @@ class UserStoreClass extends EventEmitter {
 }
 
 var UserStore = new UserStoreClass();
-UserStore.setMaxListeners(16);
+UserStore.setMaxListeners(600);
 
 UserStore.dispatchToken = AppDispatcher.register((payload) => {
     var action = payload.action;