Update Readme with new features
Merge branch 'master' of github.com:Zookal/magento-mock

* 'master' of github.com:Zookal/magento-mock:
  Fixes when you physically remove Mage_Log, Mage_Tag and Mage_AdminNotification. These three classes are hardcoded in the Adminhtml module so we need to mock the appropriate models with its constants and static methods.