Adds more analytics events.

conference.js

 import UIEvents from './service/UI/UIEvents';
 
 import mediaDeviceHelper from './modules/devices/mediaDeviceHelper';
+import AnalyticsAdapter from './modules/statistics/AnalyticsAdapter';
 
 import {reportError} from './modules/util/helpers';
 
                 return this.useVideoStream(stream);
             }).then(() => {
                 this.videoSwitchInProgress = false;
+                AnalyticsAdapter.sendEvent('conference.sharingDesktop.start');
                 console.log('sharing local desktop');
             }).catch((err) => {
                 this.videoSwitchInProgress = false;
                 ([stream]) => this.useVideoStream(stream)
             ).then(() => {
                 this.videoSwitchInProgress = false;
+                AnalyticsAdapter.sendEvent('conference.sharingDesktop.stop');
                 console.log('sharing local video');
             }).catch((err) => {
                 this.useVideoStream(null);
             try {
                 room.selectParticipant(id);
             } catch (e) {
+                AnalyticsAdapter.sendEvent('selectParticipant.failed');
                 reportError(e);
             }
         });
         APP.UI.addListener(
             UIEvents.VIDEO_DEVICE_CHANGED,
             (cameraDeviceId) => {
+                AnalyticsAdapter.sendEvent('settings.changeDevice.video');
                 createLocalTracks({
                     devices: ['video'],
                     cameraDeviceId: cameraDeviceId,
         APP.UI.addListener(
             UIEvents.AUDIO_DEVICE_CHANGED,
             (micDeviceId) => {
+                AnalyticsAdapter.sendEvent('settings.changeDevice.audioIn');
                 createLocalTracks({
                     devices: ['audio'],
                     cameraDeviceId: null,
         APP.UI.addListener(
             UIEvents.AUDIO_OUTPUT_DEVICE_CHANGED,
             (audioOutputDeviceId) => {
+                AnalyticsAdapter.sendEvent('settings.changeDevice.audioOut');
                 APP.settings.setAudioOutputDeviceId(audioOutputDeviceId)
                     .then(() => console.log('changed audio output device'))
                     .catch((err) => {

modules/UI/Feedback.js

 /* global $, APP, config, interfaceConfig */
 import UIEvents from "../../service/UI/UIEvents";
+import AnalyticsAdapter from '../statistics/AnalyticsAdapter';
 
 /**
  * Constructs the html for the overall feedback window.
                         var feedbackDetails
                             = document.getElementById("feedbackTextArea").value;
 
-                        if (feedbackDetails && feedbackDetails.length > 0)
+                        if (feedbackDetails && feedbackDetails.length > 0) {
+                            AnalyticsAdapter.sendEvent(
+                                'feedback.rating', Feedback.feedbackScore);
                             APP.conference.sendFeedback( Feedback.feedbackScore,
                                                     feedbackDetails);
+                        }
 
                         if (feedbackWindowCallback)
                             feedbackWindowCallback();
                     closeText: '',
                     loaded: onLoadFunction,
                     position: {width: 500}}, null);
+        AnalyticsAdapter.sendEvent('feedback.open');
     },
     /**
      * Toggles the appropriate css class for the given number of stars, to

modules/UI/toolbars/Toolbar.js

         false, "dialog.Invite",
         function (e, v) {
             if (v && roomUrl) {
+                AnalyticsAdapter.sendEvent('toolbar.invite.button');
                 emitter.emit(UIEvents.USER_INVITED, roomUrl);
             }
+            else {
+                AnalyticsAdapter.sendEvent('toolbar.invite.cancel');
+            }
         },
         function (event) {
             if (roomUrl) {
                     $(event.target).find('button[value=true]').prop('disabled', true);
                 }
             }
+        },
+        function (e, v, m, f) {
+            if(!v && !m && !f)
+                AnalyticsAdapter.sendEvent('toolbar.invite.close');
         }
     );
 }