flash.html: we don't need to force the mime type manualy anymore (in the sout chain).

With recent libavformat, only use the evil CODEC_ID_MP2 -> CODEC_ID_MP3 hack if MP2 isn't accepted by the muxer. (muxers which only accept MP2 but not MP3 should now work ... not that i know any)

contrib/FLAC: Add flac's include directory at the start of our CFLAGS so bogus header are not included ( should be fixed in flac build system)
asm seems to work for win32 now

New "Flash player" page for the HTTP interface. (Allows playback even if you don't have the VLC plugin installed ... like on the Wii)

./vlc --sout "#transcode{vcodec=FLV1,acodec=mp3,sameplerate=44100}:std{access=http{mime=video/x-flv},mux=ffmpeg{mux=flv},dst=0.0.0.0:8080/stream.flv}" ~/media/aladin.avi --loop -vvv --color -I dummy

Patch from Olivier Houchard. Thanks.

I've really had enough with this broken thing.

The only use of the timeout was to poll b_die, but net_ReadInner()
takes care of that already.

- Suppress broken and unused timeout value from net_ReadNonBlock()

- Use net_Read() instead of net_ReadNonBlock()

notification mechanism later on.
They are a lot of places that would need to be changed though.