Fix SimpleObjectHydrator behavior when column not exists in fieldMappings, relationMappings and metaMappings
[DDC-2340] Fix bug with dirty collection matching + ordering.
Fix change in signature for hydrator statement mock.
Fix bugs in tests
Refix test
Fix YAML EntityListener definition in tests
Merge pull request #593 from norzechowicz/hydrator-fix

Fix SimpleObjectHydrator behavior when column not exists in fieldMappings, relationMappings and metaMappings
[DDC-2300] Fix version xml mapping and serialization of ClassMetadata.
[DDC-1666] Fix bug where orphan removal on one-to-one associations lead to unique constraint errors when replacing an entity with a new one.
Merge branch 'DDC-1666'