all: improve input rate (no more out of order/dropped pictures on
rate change).

It avoids segfault when resizing to 0x0.
It fixes segfault when VLC is started with a video file. (But I fear
that we have a race condition here because if the same file is played
later, it works)

vlc one, fixed segfault with x11 at least)

Libvlc event: Support for event extra information passing. And register to "time" event rather than "position".

(Sometimes there are good things about NOT being on MBONE)

 - Use strdup() instead of asprintf("%s")
 - Fix format string (CDDB now owns your CD player)

  (fixes problem with most-but-not-all filenames containing a colon)
- Only allow letters as Windows drives