Fix regression from 0.8.5 when parsing microsoft [Reference] type playlists. We need to check that nothing else was forgoten in the old playlist code.

* The debug output from a v4l2 capable webcam with this would help...

- added a couple of support APIs in libvlc
- retired XPCOM interface, all scripting now goes through NPObject apis
- new APIs using libvlc (roughly similar to java bindings)

Start some simple prefs panels. Different kinds of layouts used (ie audio vs video panel). This will have to be standardized (i beleive that the video panel is better).

Implement integer config control

Start using media library

Forgot this file

* Fix a memory leak / crasher

* Start putting together all interface strings (Refs:#703)

* Fix a nasty playlist crash

 * Add atrack, vtrack and strack commands. Those can be use to display/change audio, video and subtitle tracks.
 * Fix compile warning in enqueue command.