Log Message:
Update to 2.8.3:

Fixes
=====
- Bug #149988 (Is gedit potfile versioning needed?) [Paolo Maggi]
- Bug #144894 (Ortographic corrector doesn't work in commented
  lines) [Paolo Maggi]
- Fixed a crash that happens if you remove automatic spell checker and the
  press Shift+F10 [Paolo Maggi]
- Fixed a crash in the time plugin when the format in gconf is not valid
  [Paolo Borelli]
- Fixed some mem leaks [Paolo Borelli]
- Backported some speedups from 2.9 [Paolo Borelli]
- Sync to latest libegg [Paolo Borelli]

New and updated translations
============================
- Rhys Jones (cy)
- Artur Flinta (pl)