* add support for LCMS (disabled by default, set WITH_LCMS to true to enable it)
* fixed typo that prevented TIFF support to be properly enabled
* enable ray optimization by default (scons and cmake already did this)
* fixed building with libsndfile on darwin (disabled by default)
* quicktime: use audaspace headers from $(NAN_AUDASPACE)/include instead of intern
* gameengine: add -DWITH_FFMPEG to compiler flags when building with ffmpeg support
d50cc7826f