PIM-2342 : add is_associated filter
PIM-2342 : use is_associated filter in datagrid.yml
PIM-2342 : add is associated filter for MongoDB
Merge branch 'master' into mongo/is_associated_filter
PIM-2342 : update the is associated filter
PIM-2342 : add a MongoDB product id filter
PIM-2342 : use the product id filter in MongoDB PQB
PIM-2342 : add is associated filter spec
PIM-2342 : add specs for product id filter
Merge branch 'master' into mongo/is_associated_filter
Merge branch 'master' into mongo/is_associated_filter
PIM-2342 : fix CS
Merge pull request #985 from akeneo/mongo/is_associated_filter

Is associated filter (MongoDB support)