. cleanups, use of top_builddir where possible, just to feel safer
    . fixed VLC.app inclusion of AUTHORS, COPYING etc.
    . propagated previous changes to package-osx
    . checked both build methods

special goom tree source as I was unable to use standard goom library.
(I will provide it once mmx/ppc included)
 * modules/visualization/Modules.am: added goom
 * include/vlc_block.h src/misc/block.c: introduce a new data block
 api (not yet tested, ported from my local new input work).

  that don't have a . char in their name. Also fixed a problem where the
  code was trying to open a empty string subtitle after autodetect couldn't
  find a suitable filename.

  make it easier for users to find their charset now.
* modules/demux/util/sub.?: try to find filename.subext based on filename.avi
  Very basic now, but might be become more advanced in the feature. (that's
  why it's so much code )

                 $(top_builddir) instead of $(srcdir)

(for the user filter part).
 For now, when a user filter can't be inserted it is just ignored. (before
the whole audio chain failed).

  fix broken tree

  in use by the OS. It's pretty nifty. if available it uses nl_langinfo. Then
  it falls back to trying setlocale (exept on OSX, where this funtion is useless)
  and then falls back to LC_ALL, LC_TYPE and LANG environment variables.
  If only the LANG variable is available (like on osx) it tries a countrycode
  to charset mapping (making an educated guess ).
  On windows it retrieves the charset with GetACP().
  It also has an aliases system to transform incompatible charset description
  strings to libiconv compatible charset descriptions. If you want you can even
  retrieve the charset on OS/2.
* modules/codec/subsdec/subsdec.c: By default we try to open a subtitle file in
  the systems charset (or language mapped to charset). It's no more than a guess,
  and if you open Latin1 subs on your Japanese system you will still need to
  specify the encoding by hand, but it's better then nothing.
* src/playlist/playlist.c: spelling error in a comment.

  wxwindows plugin (in UpdateAcceleratorTable, the table
  wxAcceleratorEntry entries[6] was filled with _seven_ values ;-)
  I guess it didn't happen with all compilers because of the way
  variables are stored on the stack)
* wxwindows.h: removed a warning

* Decreased the priority of kde interface because of it's unstable nature
  and not being maintained status.

* fix for win32 compilation

 Remember: each time something could be wrong then, with avi, it will be.
 I hate avi.

* modules/visualisation/visual/* :
	visualization system. It supports multi-effects.
At the moment:
	-dummy (guess what ? it does nothing)
	-scope (adapted and fixed from sam's one)
	-random (displays random plots)
Todo:
	- spectrum analyser
	- movement effects (rotations, scrolls,...)
	- blur effect ?

 * fixed numerous issues. It now works, but it has some impact on some audio
streams, especially vorbis