CRM-14101 - Unauthenticated/anonymous users can register for events even when Drupal permissions should stop them

http://issues.civicrm.org/jira/browse/CRM-14101
Merge pull request #2428 from dlobo/CRM-14101

CRM-14101 - Unauthenticated/anonymous users can register for events even when Drupal permissions should stop them