detach fix, npe fix i entitymanager
Merge pull request #153 from asimarslan/entity-manager

detach fix, npe fix in entitymanager
Fix invalid MappingException 'Multiple version attributes not
supported.'
Fix issue #143 : MappingException: Target enttity class not found
Fix 'java.lang.ClassFormatError: Code attribute in native or abstract
methods in class file' on abstract entity
Merge pull request #154 from ylemoigne/master

Fix invalid MappingException 'Multiple version attributes not supported.'
Merge pull request #155 from ylemoigne/FixClassFormatErrorInEnhancer

Fix class format error in enhancer