PIM-2163 Fixed value creation on mass edit of attribute values
Merge branch 'master' into bugfix/pim-2163-2

Conflicts:
	src/Pim/Bundle/EnrichBundle/MassEditAction/EditCommonAttributes.php
Update EditCommonAttributes.php
Merge pull request #819 from akeneo/bugfix/pim-2163-2

PIM-2163 Fixed value creation on mass edit of attribute values