(fixes WMA decoding in BeOS nightly builds)

- fix IPv6 multicast address range
- more strict IPv4 multicast address range

  holding p_picture_vout->lock for too long.

  (what the hell is i_duplicate ?)

* modules/audio_filter/converter/s16tofloat32*, modules/audio_filter/format.c: s24l/s24b conversion routines.

dynamic, per-subpicture, font size control -- i_font_size added to subpicture_region_t, new marq-size and time-size shortcuts, accessible from rc

Remove extra SAP debug

* simplified the lirc code to listen for key-* strings which we can directly use to trigger hotkeys.
* updated the example.lircrc with new required strings
* added a notice to NEWS about changed lirc syntax.

* modules/control/Modules.am, rtci.c: really delete rtci.c and removed DOS CR/LF from the last commit.

                            parameters on the fly
 * mosaic.c : center image in rectangle when keep aspect ratio is enabled
 * picture.c : remove debug message

* removed prefs_widgets.h, prefs_widgets.m, playlistinfo.h, playlistinfo.m, equalizer.m, equalizer.h, voutgl.m, voutqt.m from the build target, so they don't get copied in the Resources-folder of the binary bundle

freetype and rc extensions.  i_font_color and i_font_opacity added to subpictures, allowing per-object control (defaulting to freetype).  marq and time updated to allow font color and opacity control.  rc update to allow OTF control of all marq and time options.

Some details:

* This was mostly taken verbatim from revision:5717 (before the vout
  Mozilla support was removed), though it's been edited pretty thoroughly,
  and is now much more commented.

* The "normal" vout display should be completely unaffected, since the
  plugin-relevant code paths are only taken when p_vout->p_sys->b_embedded is
  set to VLC_TRUE.  (I've tested the normal VLC.app, and it seems fine.)

* There are still some problems with the plugin when the Mozilla window is
  resized a lot.  I suspect this is due to threading issues with
  QuickDraw, but I don't know enough about QuickDraw to be sure.  Help
  with this would be very welcome.

* The original patch in revision:5717 optimised the plugin display
  slightly, by using a mask (clipping region) so that QuickDraw only
  updated the plugin's area of the dirty region.  I elected not to use
  a mask, since I thought the extra code complexity (i.e. lots more if()
  branches) isn't worth the incremental speedup.  (If, in fact, there was
  a speedup at all -- the extra overhead induced by calculating the
  intersection of the dirty region with the mask may have offset any
  benefits: only benchmarks will tell ...)

* Announce content-length
* Allow  boundary string customization