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
PIM-1703 Defined an unique mass edit operator name
PIM-1703 Fixed class name inconsistencies
PIM-1703 Display different messages in the wizard given the current mass edit operator
PIM-1703 Redirect to the mass edit config step if only 1 is registered
PIM-1703 Fixed bug introduced by the operator registry
PIM-1703 Fixed mass edit operation namespace in form types