[CrowdIn] Updated translations
Merge pull request #1049 from nono-akeneo/crowdin/2014-04-28-17-36

Update translations from CrowdIn
PIM-2493 Fix input visibility when filtering with 'empty' operator
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
PIM-1703 Implemented the mass family requirement edition initialization
PIM-1703 Created the mass family requirements edition form type
PIM-1703 Created the mass family requirements edition template
PIM-1703 Fixed wizard titles on family mass edition
PIM-1703 Reworked the family mass edition scenario
PIM-1703 Fixed some tests
PIM-1703 Implemented the Family requirement mass operation performing