Update build.sh
Update build.sh

updated ffmpeg to 2.0 and libpng to 1.6.3
kreldjarn/ffmpeg-decklink,andreipoe/ffmpeg-static,kreldjarn/ffmpeg-static,michalliu/ffmpeg-static,kreldjarn/ffmpeg-static,zimbatm/ffmpeg-static,kreldjarn/ffmpeg-decklink,kreldjarn/ffmpeg-decklink,andreipoe/ffmpeg-static,michalliu/ffmpeg-static,zimbatm/ffmpeg-static,kreldjarn/ffmpeg-static,kreldjarn/ffmpeg-static,kreldjarn/ffmpeg-decklink