Custom emoji & Sticker support (#686)

* Remove comments

* Show custom emoji first in suggestions

* Show global image packs in emoji picker

* Display emoji and sticker in room settings

* Fix some pack not visible in emojiboard

* WIP

* Add/delete/rename images to exisitng packs

* Change pack avatar, name & attribution

* Add checkbox to make pack global

* Bug fix

* Create or delete pack

* Add personal emoji in settings

* Show global pack selector in settings

* Show space emoji in emojiboard

* Send custom emoji reaction as mxc

* Render stickers as stickers

* Fix sticker jump bug

* Fix reaction width

* Fix stretched custom emoji

* Fix sending space emoji in message

* Remove unnessesary comments

* Send user pills

* Fix pill generating regex

* Add support for sending stickers

src/client/initMatrix.js

@@ -67,7 +67,7 @@ class InitMatrix extends EventEmitter {
         if (prevState === null) {
           this.roomList = new RoomList(this.matrixClient);
           this.accountData = new AccountData(this.roomList);
-          this.roomsInput = new RoomsInput(this.matrixClient);
+          this.roomsInput = new RoomsInput(this.matrixClient, this.roomList);
           this.notifications = new Notifications(this.roomList);
           this.emit('init_loading_finished');
         }