- Fix non-aggregate control URL

Makes it clear that subversion is required for ffmpeg & tremor
Removes obsolete libraries from the list

Do not try to connect to last.fm every second if the request fails, and server allows immediate retry

it is now enabled by default if headers & library are present

unify errors on missing/too old tools
remove insulting and not used variables

This allows transcoding say, DVD or DVB subs to normal ones.

Only tested with RTP output, but might also work with ogg, mp4, ts...
The problem is that most of these do not seem to check the encoding.

Add FVFW and fvfw since ffdshow seems to offer that as an option when encoding mpeg 4 video. This might fix a few cases where videos weren't decoded by VLC.

also add myself to authors in those files.