* 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