fixed no align option in media settings modal window (FS#2411)

lib/scripts/media.js

@@ -253,8 +253,10 @@ var dw_mediamanager = {
                         }
                     }
                 }
-                alignleft = dw_mediamanager.align === '2' ? '' : ' ';
-                alignright = dw_mediamanager.align === '4' ? '' : ' ';
+                if (dw_mediamanager.align !== '1') {
+                    alignleft = dw_mediamanager.align === '2' ? '' : ' ';
+                    alignright = dw_mediamanager.align === '4' ? '' : ' ';
+                }
             }
         }
         edid = String.prototype.match.call(document.location, /&edid=([^&]+)/);