v2.0.0

• [BC] Minimum PHP dependency has been raised to 5.5.
• [BC] PermissionInterface has been removed from RBAC component. This has been moved to ZfcRbac. Rbac only accepts "mixed"
  permission, and it is up to your implementation to decide what a permission is.
• [BC] Rbac will now throw an exception if permission is not a string. If you need to do more check, you could use assertions for instance.

v1.2.0

• isGranted no longer cast permissions to string. Instead, the permission is now given to your role entity as it. This
  may be a potential BC if you only expected string in your hasPermission method.
• PermissionInterface is deprecated and will be removed in final implementation (likely for ZF3). RBAC should not
  enforce any interface for a permission as its representation is dependant of your application. However, modules
  like ZfcRbac may enforce an interface for permissions.
• Various PHPDoc fixes

v1.1.0

• [BC] Remove factory. It was not intend to be here but rather on ZfcRbac. This way this component is completely framework agnostic

v1.0.0

• Initial release