Util: Add interface detection for FreeBSD (bug 1730)

I've also been hit with this bug on FreeBSD where
iproute2 is not available.

FreeBSD 8.2-STABLE i386

I wrote a little patch to make gpodder work on FreeBSD.
bin/gpo: Fix broken "YouTube" command
Merge remote-tracking branch 'upstream/master'
Updated Italian translation
Mention eyeD3 version compatibility
Extensions: New on_episode_playback function
upload episode actions to gpodder.net in batches

allows partially successful uploads and resuming; avoids empty uploads
Merge pull request #62 from stefankoegl/batch-actions

Upload episode actions in batches
Mac OS X: GtkOSXApplication 2.0.1 fixes (bug 1759)
YouTube: Fix directory search (bug 1760)

For users who set their realname as display name,
search results resulted in non-working feeds.

Now using the username from the URI to fix this.
i18n tools: Prefer .po file from Transifex
Updated Czech (Czech Republic) translation
Updated Spanish translation
Updated Spanish (Spain) translation
Updated Spanish (Mexico) translation
Updated Basque translation
Updated Persian (Iran) translation
Updated Galician translation
Updated Hebrew translation
Updated Kazakh translation