Mark registered users in buddy list.

static/partials/buddy.html

@@ -1,5 +1,5 @@
 <div class="buddy withSubline">
     <div class="buddyimage"><i class="fa fa-user fa-3x"/><img ng-show="status.buddyPicture" alt ng-src="{{status.buddyPicture}}" width="46" height="46"/></div>
     <div class="buddy1">{{session.Id|displayName}}</div>
-    <div class="buddy2">{{session.Ua}}</div>
+    <div class="buddy2"><i ng-show="session.Userid" class="fa fa-star-o"></i> {{session.Ua}}</div>
 </div>