BUG 6505 "Users with the "PM_USERS" permission..." Solved!

- completing validations
- ADMIN->Users now enabled for PM_USERS permission

workflow/engine/methods/users/usersGroups.php

@@ -88,4 +88,6 @@ $oHeadPublisher->addExtJsScript('users/usersGroups', false);    //adding a javas
 $oHeadPublisher->addContent('users/usersGroups'); //adding a html file  .html.
 $oHeadPublisher->assign('USERS', $users);
 
+$oHeadPublisher->assign('hasAuthPerm', ($RBAC->userCanAccess('PM_SETUP_ADVANCE') == 1));
+
 G::RenderPage('publish', 'extJs');