create Group/Edit route, template, view
connect to undelying controller
manage event 'rollbackAndSave' into route 'editGroup'
manage events 'rollback', 'update', 'update&close'
suppress old modal usage, reuse 'groupCtrl' (instead of 'editGroupCtrl')
integration tests of Group module
[fix] rollback call
balck-ify behind editGroupModal
Merge pull request #18 from Kcnarf/editGroup_genericModal(2)

Edit group generic modal(2)