GUAC-932: Fully-working connection editor. Initial migration of users and connection groups to own edit pages. Add support for CSS classes on notification actions.

guacamole/src/main/webapp/app/notification/templates/guacNotification.html

@@ -41,7 +41,7 @@
 
     <!-- Buttons -->
     <div ng-show="notification.actions.length" class="buttons">
-        <button ng-repeat="action in notification.actions" ng-click="action.callback()">{{action.name | translate}}</button>
+        <button ng-repeat="action in notification.actions" ng-click="action.callback()" ng-class="action.className">{{action.name | translate}}</button>
     </div>
 
 </div>