added support for mentions image

git-svn-id: http://svn.research-infrastructures.eu/public/d4science/gcube/trunk/portlets/user/notifications@73610 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/notifications/client/view/templates/SingleNotificationView.java

@@ -102,6 +102,8 @@ public class SingleNotificationView extends Composite {
 			return images.like();
 		case COMMENT:
 			return images.comment();
+		case MENTION:
+			return images.mention();
 		case MESSAGE:
 			return images.message();
 		case WP_FOLDER_ADDEDUSER:

src/main/java/org/gcube/portlets/user/notifications/client/view/templates/images/NotificationImages.java

@@ -7,6 +7,9 @@ public interface NotificationImages extends ClientBundle {
 	@Source("comment.png")
 	ImageResource comment();
 	
+	@Source("tag_blue.png")
+	ImageResource mention();
+	
 	@Source("star_blue.png")
 	ImageResource like();