Colour models and colour spaces:
	LMS
	L'M'S'
	ICtCp
	YCbCr
	TSL
	Y'UV
	Hunter 1948 color space (see Wikipedia article on CIELAB; see http://www.konicaminolta.com/instruments/knowledge/color/part4/06.html)
	Hunter Rdab
	CIELCh (CIEHLC) (see Wikipedia article on CIELAB)
	IPT
	xvYCC
	scRGB
	HSL (Alternative RGB model)
	HSV (Alternative RGB model)
	HSI (Alternative RGB model)
	HCL (Alternative RGB model)
	HCV (Alternative RGB model)
	HCI (Alternative RGB model)

Support for generic additive colour spaces (3 channels and more)
Support for generic subtractive colour spaces (3 channels and more)

Improve performance of libcolour_convert_en_masse
GPU accelerate libcolour_convert_en_masse