Merge pull request #1 from Zyava/master

added backward compatibility with attributes which are absent in db but present in xml config for some reason
MAGE-364: EAV cache is broken
- fixed Aoe_Eav_Model_Config::getEntityAttributeCodes() method for case when entity type doesn't have attributes (some custom one) or there are no attributes in attribute set
Merge pull request #1 from AOEmedia/master

Fixed Aoe_Eav_Model_Config::getEntityAttributeCodes() method for case when entity type doesn't have attributes (some custom one) or there are no attributes in attribute set