Fixed an issue where identityroles would not get properly converted to strings.


Get this error `Object of class Application\Entity\Role could not be converted to string` at https://github.com/ZF-Commons/ZfcRbac/blob/master/view/zend-developer-tools/toolbar/zfc-rbac.phtml#L19
Merge pull request #115 from atans/patch-1

Issue where identityroles would not get properly converted to strings