PIM-1557 Removing relation between Category and Product
PIM-1557 Move repository action related to product category relationship to ProductRepository
Merge branch 'master' into mongodb/PIM-1557

Conflicts:
	src/Pim/Bundle/CatalogBundle/Entity/Repository/ProductRepository.php
PIM-1557 Remove unused method
PIM-1557 Add BC note on changelog
PIM-1557 Fixes Unit test
Merge branch 'master' into mongodb/PIM-1557

Conflicts:
	src/Pim/Bundle/CatalogBundle/Entity/Repository/ProductRepository.php
Merge branch 'master' into mongodb/PIM-1557
PUM-1557 Change category fixtures loading when product provided to category
PIM-1557 Remove useless newline
PIM-1557 Revert unused public method visibility
Style fixes
Use form alias in AddAttributeTypeRelatedFieldsSubscriber
Fix phpDoc
PIM-1557 Remove var_dump
PIM-1557 Use a more precise regexp for products property
Merge pull request #621 from akeneo/mongodb/PIM-1557

Mongodb/pim 1557
Fix an error when creating media values in FixturesContext
PMD : fix long variable
Made value column nullable to be coherent with validation