Clear Lifecycle.RtsClient on MatrixChat.mount

- otherwise it ends up sitting around and failing later tests.

Author: richvdh

src/Lifecycle.js

@@ -265,7 +265,11 @@ function _handleRestoreFailure(e) {
 
 let rtsClient = null;
 export function initRtsClient(url) {
-    rtsClient = new RtsClient(url);
+    if (url) {
+        rtsClient = new RtsClient(url);
+    } else {
+        rtsClient = null;
+    }
 }
 
 /**

src/components/structures/MatrixChat.js

@@ -263,11 +263,8 @@ module.exports = React.createClass({
         window.addEventListener('resize', this.handleResize);
         this.handleResize();
 
-        if (this.props.config.teamServerConfig &&
-            this.props.config.teamServerConfig.teamServerURL
-        ) {
-            Lifecycle.initRtsClient(this.props.config.teamServerConfig.teamServerURL);
-        }
+        const teamServerConfig = this.props.config.teamServerConfig || {};
+        Lifecycle.initRtsClient(teamServerConfig.teamServerURL);
 
         // if the user has followed a login or register link, don't reanimate
         // the old creds, but rather go straight to the relevant page