The output profiles now retain only 'Display' device class as well as
the Monitor profile - and they both have to have rgb color space, the
printer profile retain only 'Output' device class.
MacOS can use soft-proofing but due to undocumented feature of OSX, and
since Cairo assume that the image data are sRGB, the monitor profile is
forced to 'RT_sRGB'. A warning message replace the combobox for this OS.
23863aceca
