PIM-3533 Avoid normalizing empty price collections to prevent wrong keys
PIM-3533 Update changelog
Merge pull request #1912 from akeneo/PIM-3533

PIM-3533 Avoid normalizing empty price collections to prevent wrong keys
PIM-3533 Add a migration script for incorrectly built versions
Merge pull request #1917 from akeneo/PIM-3533

PIM-3533 Add a migration script for incorrectly built versions
PIM-3552 Force single result cache per select2 grid filter
Merge pull request #1920 from akeneo/PIM-3552

PIM-3552 Force single result cache per select2 grid filter
PIM-3531: allow to import YAML in files for Behat scenarios
PIM-3531: add a getFilter method for the query filter registry
PIM-3531: fixing CSV import scenarios
Merge pull request #1903 from akeneo/PIM-3535

PIM-3535: allow to import YAML files for Behat, and change filter registry API
Merge branch '1.2' into merge-1218

Conflicts:
	CHANGELOG.md
	src/Pim/Bundle/TransformBundle/Normalizer/Flat/ProductValueNormalizer.php
PIM-3533 Allow extra options in denormalizer context
Merge pull request #1922 from akeneo/merge-1218

Merge 1.2.18 fixes on master
extract base classes
enable AkeneoDoctrineExtensionsSupport bundle
rename the bundle to AkeneoDoctrineExtensionsBundle
alias former services to AkeneoDoctrineExtensions services
fix specs and unit tests
remove all occurencies to catalog or product