boblight support working & native compile support

Hi gimli,

the boblight support is finally ready. I have also add the dependency on libboblight and a native compilation script.

The makefiles have been tested in a native environment, but not on a cross-compile machine. Please take a moment to look into the configure part of Makefile.boblight.

The compiled source can be found here: http://www.vzoltan.com/stasiko/omxplayer-dist.tar.gz

Greetz