Fixes issue with available devices icons

index.html

     <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
     <script src="libs/toastr.js?v=1"></script><!-- notifications lib -->
     <script src="interface_config.js?v=5"></script>
-    <script src="libs/app.bundle.js?v=48"></script>
+    <script src="libs/app.bundle.js?v=49"></script>
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <link rel="stylesheet" href="css/font.css?v=6"/>
     <link rel="stylesheet" href="css/toastr.css?v=1">

libs/app.bundle.js

         }
     },
     setDeviceAvailability: function (devices) {
-        this.devices.audio = (devices && devices.audio === true);
-        this.devices.video = (devices && devices.video === true);
+        if(!devices)
+            return;
+        if(devices.audio === true || devices.audio === false)
+            this.devices.audio = devices.audio;
+        if(devices.video === true || devices.video === false)
+            this.devices.video = devices.video;
         eventEmitter.emit(RTCEvents.AVAILABLE_DEVICES_CHANGED, this.devices);
     }
 };

modules/RTC/RTC.js

         }
     },
     setDeviceAvailability: function (devices) {
-        this.devices.audio = (devices && devices.audio === true);
-        this.devices.video = (devices && devices.video === true);
+        if(!devices)
+            return;
+        if(devices.audio === true || devices.audio === false)
+            this.devices.audio = devices.audio;
+        if(devices.video === true || devices.video === false)
+            this.devices.video = devices.video;
         eventEmitter.emit(RTCEvents.AVAILABLE_DEVICES_CHANGED, this.devices);
     }
 };