Please cherry-pick:

Please cherry-pick:
- since departments, headquarters and branch offices cannot link to employes,
  so also the view navigation rules must reflect this. Employees can have a
  relationship to any these 3 entities and would lead to endless loop
- introduced adminDepartmentActionController instead of without "Action", let
  us keep these empty ("dead") backing beans around, they may one day be filled
  with life again. Or they will be removed if no purpose could be found.
- closed some TODOs in views where p:fieldset allows a title attribute
- also a ui:fragment can be avoided when p:fieldset allows a render attribute
- added view for administrative editing of departments
- removed double // NOI18N strings (ops?) which is for some language string
  scanning and translation tools to ignore these lines (exception messages
  should normally not show up to the user).

Signed-off-by: Roland Häder <roland@mxchange.org>