message: Track Notifier events so we know what % have toolbar/enabled/etc
diff: @@ -18,6 +18,7 @@ limitations under the License.
  import MatrixClientPeg from './MatrixClientPeg';
  import PlatformPeg from './PlatformPeg';
  import TextForEvent from './TextForEvent';
  +import Analytics from './Analytics';
  import Avatar from './Avatar';
  import dis from './dispatcher';
  import sdk from './index';
  @@ -121,6 +122,9 @@ const Notifier = {
  setEnabled: function(enable, callback) {
  const plaf = PlatformPeg.get();
  if (!plaf) return;
  +
  + Analytics.trackEvent('Notifier', 'Set Enabled', enable);
  +
  // make sure that we persist the current setting audio_enabled setting
  // before changing anything
  if (global.localStorage) {
  @@ -199,6 +203,8 @@ const Notifier = {
  setToolbarHidden: function(hidden, persistent = true) {
  this.toolbarHidden = hidden;
  + Analytics.trackEvent('Notifier', 'Set Toolbar Hidden', hidden);
  +
  // XXX: why are we dispatching this here?
  // this is nothing to do with notifier_enabled
  dis.dispatch({
  