Merge almost all branches into 'all'

Merged:
* apple-remote-sl
* ass
* blockless
* carbon
* coreaudio
* gl3 (including win32)
* high-bitdepth
* hq-vf_scale
* libav
* ncursesw
* svn
* theoradec
* x11-corevideo
* win32 (included in gl3)

ass-fast-event-lookup is not included because it relies
on an increased libass version number, which changes
with every version number update in libass master,
causing the branch here to be rewritten every time.