Added SiteTreeHandlers.controller_url so that subsites module can work

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@41219 467b73ca-7a2a-4603-9d3b-597d59a354a9

javascript/AssetAdmin.js

@@ -7,6 +7,8 @@ SiteTreeHandlers.orderChanged_url = 'admin/assets/ajaxupdatesort';
 SiteTreeHandlers.loadPage_url = 'admin/assets/getitem';
 SiteTreeHandlers.loadTree_url = 'admin/assets/getsubtree';
 SiteTreeHandlers.showRecord_url = 'admin/assets/show/';
+SiteTreeHandlers.controller_url = 'admin/assets';
+
 var _HANDLER_FORMS = {
 	addpage : 'addpage_options',
 	deletepage : 'deletepage_options',

javascript/LeftAndMain_left.js

@@ -8,6 +8,7 @@ if(typeof SiteTreeHandlers == 'undefined') SiteTreeHandlers = {};
 SiteTreeHandlers.parentChanged_url = 'admin/ajaxupdateparent';
 SiteTreeHandlers.orderChanged_url = 'admin/ajaxupdatesort';
 SiteTreeHandlers.showRecord_url = 'admin/show/';
+SiteTreeHandlers.controller_url = 'admin';
 
 var _HANDLER_FORMS = {
 	addpage : 'Form_AddPageOptionsForm',

javascript/NewsletterAdmin_left.js

@@ -1,6 +1,7 @@
 if(typeof SiteTreeHandlers == 'undefined') SiteTreeHandlers = {};
 SiteTreeHandlers.showNLDraft_url = 'admin/newsletter/shownewsletter/';
 SiteTreeHandlers.showNLType_url = 'admin/newsletter/showtype/';
+SiteTreeHandlers.controller_url = 'admin/newsletter';
 
 SiteTree.prototype = {
 	castAsTreeNode: function(li) {

javascript/SecurityAdmin_left.js

@@ -1,6 +1,7 @@
 SiteTreeHandlers.parentChanged_url = 'admin/security/ajaxupdateparent';
 SiteTreeHandlers.orderChanged_url = 'admin/security/ajaxupdatesort';
 SiteTreeHandlers.loadPage_url = 'admin/security/getitem';
+SiteTreeHandlers.controller_url = 'admin/security';
 
 _HANDLER_FORMS['deletegroup'] = 'deletegroup_options';