remote_control to use exceptions.py and the latter to be included in POTFILES.in [please always do this when new files]

[Paweł M. Zaskórski]use gtkspell to single message winow too; stop doing if 'gtkspell' in globals() and use global var (faster)

Matteo thanks both Mallo Blenne and people on the tp@lists.linux.it mailing; we thank him and those ppl for italian transl which latest update is in now