PIM-2317 : add a "dummy" but agnostic InGroup sorter
PIM-2317 : add the create query method used by group products grid
PIM-2317 : add a fake "in_group" property in product result record
PIM-2317 : add "fake" but agnostic in group filter
Merge branch 'master' into mongo/group_product_grid
Trust github.com on travis
Fix KnpLabs/Gaufrette version
Merge branch '1.0'
Merge branch 'master' into mongo/group_product_grid
PIM-23-17 : temporary fix for in group sorter / filter
Fixes wrong count of products
Merge branch 'master' of github.com:akeneo/pim-community-dev
PIM-2317 : fix CS
Merge pull request #942 from akeneo/mongo/group_product_grid

Prepare the group products grid (MongoDB support)
Merge branch 'master' into PIM-2287
Merge branch 'PIM-2287' of github.com:akeneo/pim-community-dev into PIM-2287