revert patch that prevents updating modal with new posts (it just close)

interface_common.js

@@ -447,7 +447,7 @@ var retweetSubmit = function(e)
 
 
 function initInterfaceCommon() {
-    $( "body, .cancel, .modal-blackout" ).on( "click", function() { closeModal($(this)); } );
+    $( "body" ).on( "click", ".cancel" , function() { closeModal($(this)); } );
     $( ".post-reply" ).bind( "click", postReplyClick );
     $( ".post-propagate" ).bind( "click", reTwistPopup );
     $( ".userMenu-config-dropdown" ).bind( "click", dropDownMenu );