Support Python 2.4

* copy [16427] to the switcher module as well. ( is times 3 bytes enough ? perhaps i should use 4 bytes per pixel ? )

* set the proper buffer size when encoding with ffmpeg, instead of using fixed 1024x1024 maximumframe size for the buffer.

- fixed a couple of crashes on MacOS X

- code cleanup

vlcshell.cpp: improved FireFox/OSX support 

* GCC 2.x patch by Cian Duffy <myob87@gmail.com>. BTW. This method should return something but doesn't, so someone with more knowledge of this part might want to have a look at it ;)

- javascript fixes

* avoid the error on sub-original-fps