BS-9777
Improve group path combo.

Conflicts:
	bundles/plugins/org.bonitasoft.studio.actors/messages.properties
	bundles/plugins/org.bonitasoft.studio.actors/src/org/bonitasoft/studio/actors/ui/wizard/page/UsersWizardPage.java
BS-9477
update checkbox label provider
BS-9477
update checkbox label provider