[Doctrine] Add support for non initialized proxy on postRemove
[Doctrine] Add tests for non initialized proxy on postRemove
[Travis] Fix build
Merge pull request #267 from egeloen/doctrine-proxy

[Doctrine] Add support for non initialized proxy on postRemove
Remove the getClassName() method from the AdapterInterface
Start to implement multiple persistence backends support (breaks propel and some other stuff)
Split doctrine listeners
Write tests for the new listeners
Clean the vich uploader extension
Do not trigger the upload process if there is no file to upload (closes #264)
Split propel listeners
Test propel event listeners
Fix doctrine listener tests
Fix a few docblocks
Do not trigger the clean event is not file is uploaded
Join the mapping to upload events (fixes #266)