Webrtc client side (#4026)

* WebRTC Server side

* WebRTC client side

* Bug fixes and improvements

* Pushing UI improvements for webrtc (#3728)

* Pushing UI improvements for webrtc

* Updating webrtc css

* PLT-3943 WebRTC P1: bug fixes and improvements

* Video resolution set to std, reduce volume of ringtone and flip video horizontally

* Fix calling a user B while WebRTC RHS is still opened

* Leave RHS opened when call ends, Fix isBusy on popover and channel_header

* Fix pre-release feature, RHS & System Console

* PLT-3945 - Updating UI for webrtc (#3908)

* PLT-3943 Webrtc p1

* Add ongoing call indicator when RHS is opened

* UI updates to to webrtc notifcation (#3959)

webapp/components/loading_screen.jsx

@@ -11,6 +11,17 @@ export default class LoadingScreen extends React.Component {
         this.state = {};
     }
     render() {
+        let message = (
+            <FormattedMessage
+                id='loading_screen.loading'
+                defaultMessage='Loading'
+            />
+        );
+
+        if (this.props.message) {
+            message = this.props.message;
+        }
+
         return (
             <div
                 className='loading-screen'
@@ -18,10 +29,7 @@ export default class LoadingScreen extends React.Component {
             >
                 <div className='loading__content'>
                     <h3>
-                        <FormattedMessage
-                            id='loading_screen.loading'
-                            defaultMessage='Loading'
-                        />
+                        {message}
                     </h3>
                     <div className='round round-1'></div>
                     <div className='round round-2'></div>
@@ -36,5 +44,6 @@ LoadingScreen.defaultProps = {
     position: 'relative'
 };
 LoadingScreen.propTypes = {
-    position: React.PropTypes.oneOf(['absolute', 'fixed', 'relative', 'static', 'inherit'])
+    position: React.PropTypes.oneOf(['absolute', 'fixed', 'relative', 'static', 'inherit']),
+    message: React.PropTypes.node
 };