Fix Rocket.Chat.Cordova issue #15.

packages/rocketchat-lib/client/lib/openRoom.coffee

@@ -36,6 +36,7 @@ currentTracker = undefined
 				if roomDom.classList.contains('room-container')
 					roomDom.querySelector('.messages-box > .wrapper').scrollTop = roomDom.oldScrollTop
 
+			RocketChat.TabBar.setTemplate ''
 			Session.set 'openedRoom', room._id
 
 			Session.set 'editRoomTitle', false

packages/rocketchat-ui/views/app/room.html

@@ -81,8 +81,10 @@
 				{{> messageBox}}
 			</footer>
 		</section>
-		<section class="flex-tab">
-			{{> Template.dynamic template=flexTemplate data=flexData}}
-		</section>
+		{{#if flexTemplate}}
+			<section class="flex-tab">
+				{{> Template.dynamic template=flexTemplate data=flexData}}
+			</section>
+		{{/if}}
 	</div>
-</template>
\ No newline at end of file
+</template>