message: General cleanup of SettingController class
  Noticed while working in the area.
diff: @@ -63,16 +63,14 @@ export default abstract class SettingController {
  * @param {String} roomId The room ID, may be null.
  * @param {*} newValue The new value for the setting, may be null.
  */
  - public onChange(level: SettingLevel, roomId: string, newValue: any) {
  + public onChange(level: SettingLevel, roomId: string, newValue: any): void {
  // do nothing by default
  -
  - // FIXME: force a fresh on the RoomView for the roomId in question
  }
  /**
  * Gets whether the setting has been disabled due to this controller.
  */
  - public get settingDisabled() {
  + public get settingDisabled(): boolean {
  return false;
  }
  }
  