Merge pull request #522 from doctrine/test-php-5-6

also run tests on php 5.6 (1.1) branch
Merge pull request #572 from doctrine/rename_bind_trans_event

replaced pre/postBindTranslation events with a postCreateTranslation
Release of new version 1.2.0-rc6
Release of new version 1.2.0
add missing property
Merge branch '1.1'
ignore deprecation errors
Retrieved document instance should be the same one that is already in the identity map

fixes proxy loading fails when objects referencing each other are loaded by the same `UnitOfWork#findMany()` call