created failing test for created/updated at in superclass
A fix for inheritance problem #307

Just need to write some more tests
A fix for inheritance of Neo4j::ActiveNode classes, closes #307

Updated tests
Merge remote-tracking branch 'origin/issue335' into orm_adapter
Merge pull request #339 from andreasronge/issue335

Issue335
Merge branch 'master' into orm_adapter
dup array and clear the wrapped labels because subsequent specs aren't seeing classes in _wrapped_classes that were created before this test runs