Please cherry-pick:

Please cherry-pick:
- rewrote branch office/employee list to filtering, sorting list
- also used f:facet name="<footer|header>" instead of h:panelGroup+hX to make
  more generic table footer and header
- disabled filtering for creation timestamps and action links
- renamed some i18n strings, let them have plural (more than one item could be
  listed)
- renamed COMPANY_FOO to only FOO as no other employees or departments (e.g.
  fire department) will this application be about
- had switched STATE_SAVING_METHOD to server for testing things, missed to set
  it back before committing, now set back to client
- added navigation rules for departments and opening times
- added missing i18n strings

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