GUI: prevent calling open() on not-authorized tabs

- Do not call open() on tabs, which user is not authorized to view,
  since they update context (e.g. menu) a might display private
  data like other users names.
- Fixed privileges on own member status widget (display
  change option only is user is vo_admin of particular vo).
GUI: prevent calling open() on not-authorized tabs

- Do not call open() on tabs, which user is not authorized to view,
  since they update context (e.g. menu) a might display private
  data like other users names.
- Fixed privileges on own member status widget (display
  change option only is user is vo_admin of particular vo).
- Fixed IDS used for saving member contact informations.