Clean up RerefencedCollection by extending AbstractLazyCollection
Restore the initialized proprerty and related methods
Merge pull request #945 from akeneo/referencedcollection-cleanup

Clean up RerefencedCollection by extending AbstractLazyCollection
Fixes Not contains filter on MongoDB
Merge branch 'master' of github.com:akeneo/pim-community-dev
Move mass actions definition in mass_actions.yml file
Add mass_actions.yml file as file configuration
Fix behat scenario
Merge branch 'master' of github.com:akeneo/pim-community-dev
Trust github.com on travis
Fix KnpLabs/Gaufrette version
Merge branch '1.0'
Merge branch 'master' into mongo/group_product_grid