Original php-code made by Toni Korhonen, and I made lua script based
on that example.

macosx/framework: Fix the configure ARCHS autodetection script so that we are shell independant (setenv vs export), and force to build only the selected ARCHS.

We still need the configure checks.
Only the HAL device probe plugin is gone.

It was ever dead code within VLC. On top of that, HAL is now officially
deprecated in favor of libudev (and higher level D-Bus middlewares).

This should fix a rare crash:
LibVLC fatal error destroying mutex (16) in thread 17390 at ../../src/misc/pthread.c:188 in vlc_mutex_destroy
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7fff933]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7fff9c8]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4(vlc_mutex_destroy+0x3f)[0xb7fffa39]
/home/remi/videolan/vlc/build/modules/access/rtp/.libs/librtp_plugin.so[0xb5563a41]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4(__module_unneed+0x29)[0xb7fe414f]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7f9984e]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7fa69fb]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7fa6c0c]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7faeef2]
/home/remi/videolan/vlc/build/src/.libs/libvlccore.so.4[0xb7feb16e]
/lib/i686/cmov/libpthread.so.0[0xb7f324b5]
/lib/i686/cmov/libc.so.6(clone+0x5e)[0xb7eaea5e]

Signed-off-by: Laurent Aimar <fenrir@videolan.org>

Also change comparing stream size from (<=0 && < 16384) to (<=0 && >16384)

This and earlier change to add access to prefix should fix usage of eg
http://media.meteo.it/vsat.asx playlist-file.