Fix QTags.closeAllTags(), replace 'tb' with 'ed' in quicktags,js to make it clear it is the editor instance not the toolbar, small comments quick edit fixes, see #16695, fixes #15911

git-svn-id: https://develop.svn.wordpress.org/trunk@18576 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/js/editor.dev.js

@@ -9,6 +9,9 @@ var switchEditors = {
 			if ( ed && ! ed.isHidden() )
 				return false;
 
+			if ( typeof(QTags) != 'undefined' )
+				QTags.closeAllTags(id);
+
 			if ( tinyMCEPreInit.mceInit[id] && tinyMCEPreInit.mceInit[id].wpautop )
 				txtarea_el.value = t.wpautop( txtarea_el.value );