mp4: implement dlna profile and mime computation
plugin: implement parser sorting

Sort the parsers based on its defined order field. The smaller "ordered"
plugin will atempt to parse first.
generic: implemente a generic parser plugin

A generic parser plugin based on libavcoded, initially supporting
mpeg1, mpeg2 and mp3.
change project url to github.

Garage.maemo is no more for a while, now we'll have everything in github.
prepare for next release, for now bumped version to 0.4.5.99

Still need to define if it will be a 1.0 or 0.5 release.
daemon monitors mounts and triggers scans.
configure: use pkg check instead of headers

Use pkg check for vorbis/tremor instead of headers and libs.