PIM-3237: Move filter transformation to catalog bundle
PIM-3237: Use constants to describe operators
PIM-3237: Add spec for orm
PIM-3237: FIx PR comments
PIM-3237: add specs
PIM-3237: fix string filter on like operator
PIM-3237: Remove base filter and add some specialized filters
PIM-3237: Add phpspec
Merge branch 'PIM-3237' of github.com:akeneo/pim-community-dev into PIM-3237

* 'PIM-3237' of github.com:akeneo/pim-community-dev: (22 commits)
  PIM-3237: Add phpspec
  PIM-3237: Remove base filter and add some specialized filters
  PIM-3237: fix string filter on like operator
  PIM-3237: Add phpspecs
  PIM-3237: Fix PR comments
  PIM-3237: Add spec for orm
  PIM-3237: Use constants to describe operators
  PIM-3237: Move filter transformation to catalog bundle
  Format date for grid date cells on the server side
  PIM-3255 Remove hardcoded table names for migrations
  PIM-3209: Fix import running even with wrong file
  PIM-3255 Add DB migration
  PIM-3255 Remove the 'defaultValue' property of Attribute
  PIM-3210 Add ACL on entity history
  PIM-3276 Update translation keys
  PIM-3270 Add a reset button
  PIM-3276 UI improvements for grid column configuration
  PIM-3234 : extract method to ease override
  PIM-3234 Changelog on bugfix
  PIM-3234 Fixes unclassified category filter
  ...

Conflicts:
	CHANGELOG.md
	spec/Pim/Bundle/CatalogBundle/Doctrine/MongoDBODM/Filter/NumberFilterSpec.php
	src/Pim/Bundle/CatalogBundle/Doctrine/MongoDBODM/Filter/StringFilter.php
	src/Pim/Bundle/CatalogBundle/Doctrine/Query/Operators.php
	src/Pim/Bundle/FilterBundle/Filter/ProductValue/StringFilter.php
PIM-3237: Fix phpspecs