Improve the check whether the PDF annotation is enabled.

Change-Id: I28a9b46d139edfb6dffe2afde39bd767ac6a7af3
Signed-off-by: Jan Holesovsky <kendy@collabora.com>

loleaflet/src/control/Control.Menubar.js

@@ -1466,6 +1466,11 @@ L.Control.Menubar = L.Control.extend({
 			case 'pagesetup':
 			case 'watermark':
 				return false;
+			case 'insertcomment':
+			case 'savecomments':
+				if (!this._map.isPermissionEditForComments()) {
+					return false;
+				}
 			}
 		}