MAGETWO-89661: Manually patch jquery.hotkeys.js to fix content editable space issue

- Ensure contenteditable areas work as expected

Author: davemacaulay

lib/web/jquery/jstree/jquery.hotkeys.js

@@ -48,8 +48,12 @@
 
 		handleObj.handler = function( event ) {
 			// Don't fire in text-accepting inputs that we didn't directly bind to
+            /**
+             * Modified by Magento to ensure it doesn't fire on any content editable areas. This library is no
+             * longer maintained by its author however we require content editable to behave as expected.
+             */
 			if ( this !== event.target && (/textarea|select/i.test( event.target.nodeName ) ||
-				 event.target.type === "text") ) {
+				 event.target.type === "text" || jQuery(event.target).attr('contenteditable')) ) {
 				return;
 			}