Fixes issue in IE where click events on local video thumbnail are captured by local audio object created by Temasys plugin on stream attach.

modules/UI/videolayout/VideoLayout.js

             localAudio.autoplay = true;
             localAudio.volume = 0;
         }
+        // Now when Temasys plugin is converting also <audio> elements to
+        // plugin's <object>s, in current layout it will capture click events
+        // before it reaches the local video object. We hide it here in order
+        // to prevent that.
+        if (RTCBrowserType.isIExplorer()) {
+            // The issue is not present on Safari. Also if we hide it in Safari
+            // then the local audio track will have 'enabled' flag set to false
+            // which will result in audio mute issues
+            $('#localAudio').hide();
+        }
     };
 
     my.changeLocalVideo = function(stream, isMuted) {