Implemented ReferenceIntegrity feature
Reverted file permissions
Updated doc
Merge pull request #180 from evertharmeling/reference_integrity

Implemented ReferenceIntegrity feature
Add Possibility to configure $skipOnLoad for the TranslationListener
Rename skip_on_load to skip_translation_on_load
Merge pull request #181 from Aitboudad/master

Add Possibility to configure $skipOnLoad for the TranslationListener
update install instructions for symfony 2.1
Merge pull request #190 from jrobeson/update-sf2.1-install-instructions

update install instructions for symfony >=2.1
Fixed the composer requirements to allow Sf 2.3

Fixes #191