Kunstmaan/KunstmaanAdminBundle — pull request #217 by stephaneb (2013-07-04 10:51:42+00:00)
Title: changed method addViolationAtSubPath into  addViolationAt

addViolationAtSubPath is removed in 2.3 and now we must use addViolationAt to show the error message. Else we see a blank page when trying to save a group without any roles selected.