Add constraint for unique combination of values for variant group axis
Merge branch 'master' into PIM-1248
Merge branch 'master' into PIM-1248
PIM-1180 : typo
Update VariantGroupMatrixValidator to validate VariantGroup and move binding products to a variant group form into a dedicated subscriber
Merge branch 'master' into PIM-1248
Fix phpcs
Don't skip variant group in product import
Merge branch 'master' into PIM-1248
Update unit test
Merge branch 'master' of github.com:akeneo/pim-community-dev
Removed category form type usage from the category import

The category form type requires a security context token to display the
locale the current user have the right to edit. Unfortunately, the
import is run through command line, thus no token is available.

Anyway, the functionnal rule is to allow anyone who is launching the
script to import any data (meaning any locales). That is because import
will be most likely executed by cron script.
Fix phpcs
Add scrutinizer badge
Merge branch 'master' into PIM-1248
Fix use statement order
Prettify code
Fix phpDoc blocks
Prevent errors in case of inconsistent product values
Rename variant group axis constraint