- self registration (Internet installation now possible)

* Finally fixed the issue with resizing the controller and the broken playlist view that was the result of this resize. Estimated 60 hours spent to work around a stupid autoresize bug in the AppKit of Cocoa.

* renamed --spumargin to --sub-margin
* renamed --spu-language to --sub-language
* added note to NEWS about changed names of options

* renamed spu-channel to spu-track
* "Tracks settings" should be "Track settings"

  url somewhere but i don't know where man page conventions would put
  that.

* modules/demux/mkv.cpp: fix for chapters seeking + support for more chapter elements, like hidden chapters. Patch by Steve Lhomme (steve dot lhomme at free dot fr).
* include/vlc_input.h: added an i_level member to seekpoint_t for nested chapters (patch by Steve Lhomme).

wizard.cpp -- change checkboxes to use wxALIGN_CENTER_VERTICAL|wxALL instead of wxLEFT (alignment fix)

* all: updated the used Matroska/Ebml versions to 0.7.5 / 0.7.3, removed the old patches and changed their URLs to the official server instead of the VideoLAN-one