Clean CR edit form
Merge remote-tracking branch 'NCH/proto/workflows' into proto/workflows
Add Rule to change Request, implement group change request creation
Merge Nico

Conflicts:
	rudder-web/src/main/scala/com/normation/rudder/web/components/popup/ModificationValidationPopup.scala
start nodegroup
Merge remote branch 'vince_origin/proto/workflows' into proto/workflows
Starting the jdbc repo