Log Message:
Update wip/xfce-session to 4.8.2

Upstream changes:

4.8.2
=====
- Fix crash if save timeout for a client is triggered (bug #7320).
- Fix configuration location in manpage (bug #7371).
- Fix GDM_LANG usage to be compatible with GDM3 (bug #7400).
- Drop usage of G_CONST_RETURN macro.
- Don't exit the session on dbus restarts.
- Start KDE4 services instead of KDE3.
- Reduce size of splash engines.
- Remove the nopreview image.
- Add Greek manual screenshots.
- On installation create relative paths in symlinks to images
- Only perform hostname checks when TCP connections are enabled.
- Updated translations: Spanish (Castilian), Malay, Russian, Korean,
  Slovak, Chinese (China), Portuguese (Brazilian), Dutch (Flemish),
  Kurkish, Romanian, Italian.