dbus errors when playing flickr and shoutcast stuff

[Philippe Normand]

(linux only)
Steps to reproduce:

1. go in audio > network > shoutcast
2. play a station

Expected result: no error on console and playback starts
Current result: playback starts but you get a traceback like this one:

Twisted traceback:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 304, in _startRunCallbacks
    self._runCallbacks()
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 317, in _runCallbacks
    self.result = callback(self.result, *args, **kw)
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 281, in _continue
    self.unpause()
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 277, in unpause
    self._runCallbacks()
--- <exception caught here> ---
  File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 317, in _runCallbacks
    self.result = callback(self.result, *args, **kw)
  File "/home/phil/bzr/elisa_close/elisa-plugins/elisa/plugins/database/dbus_service.py", line 76, in build_last_picture_played_tuple
    raise PictureNotFoundError()
elisa.plugins.database.dbus_service.PictureNotFoundError:

[Philippe Normand (philn)]

Alessandro, it's YOUR fault! :)

[Alessandro Decina (alessandro.decina)]

Fixed. Take THIS, philippe!