SYWEB-12: UX tweaks.

webclient/room/room.html

@@ -24,6 +24,7 @@
                     <br/>
                     Set by: <span class="monospace">{{ event.user_id }}</span>
                     <br/>
+                    <span ng-show="event.required_power_level >= 0">Required power level: {{event.required_power_level}}</span>
                     <button ng-click="submit(event)" type="button" class="btn btn-success" ng-disabled="!event.content">
                         Submit
                     </button>
@@ -36,7 +37,7 @@
                 <td class="room-info-event-meta" width="30%">
                     <input ng-model="roomInfo.newEvent.type" placeholder="your.event.type" />
                     <br/>
-                    <button ng-click="submit(roomInfo.newEvent)" type="button" class="btn btn-success" ng-disabled="!roomInfo.newEvent.content">
+                    <button ng-click="submit(roomInfo.newEvent)" type="button" class="btn btn-success" ng-disabled="!roomInfo.newEvent.content || !roomInfo.newEvent.type">
                         Submit
                     </button>
                 </td>