[BUGFIX] Setting property _controller to false. Exception 'Mage_Core_Exception' with message 'Invalid block type: Mage_Adminhtml_Block_Empty_Edit_Form'
Merge branch 'zookal-1.2.0' of github.com:Zookal/magento_extension into zookal-1.2.0

* 'zookal-1.2.0' of github.com:Zookal/magento_extension:
  Update composer
  [ADD] composer json
  Update ApiController.php