Cherry-pick untz fixes from patrickmeehan/a29ca17be98c

Conflicts:
	3rdparty/untz/src/OggAudioSource.cpp
	3rdparty/untz/src/SoundData.h
cleaner untzsound.cpp from bullno1
onRender for frame buffer
sensible handling of lua stack trace printing, I hope
cleanup up and moved out build scripts
experimenting with moai.lua
experimenting with moai.lua
Revert "experimenting with moai.lua"

This reverts commit ccd529c36aae29ea35f9804fbb3864221289861b.
Revert "experimenting with moai.lua"

This reverts commit 11d82d7688580cf7f775c123e0c3618fbe1d614e.
make camera dependeny on screen height instead of width