PIM-1899 : add filter per date scenario
PIM-1899 : add filter per date method in grid page
PIM-1899 : match the filter by date to delegate to relevant filter
method
Rename the 'data' property of Version to 'snapshot' for clarity
Also rename some methods in VersionBuilder
Add setters in Version for nullable fields
Store the username of the author inside the Version entity
Prepare Behat fixtures for new scenarios
Create some scenarios filtering text fields on empty operator
Add scenario with textarea
Change typo in definition of scenario
Merge branch 'master' into empty_operator_behat

Conflicts:
	features/Context/Page/Base/Grid.php
Refactor filtering by empty on behat scenarios
Add scenarios for number fields
Update scenarios
Remove useless spaces
Add date filter
PIM-1703 Allow registration of mass edit actions specific to a datagrid
PIM-1703 Register mass edit action using operator instead of grid
PIM-1703 Renamed Action into Operation in the Mass edit context
PIM-1703 Renamed Mass edit action occurences