[Openicc] common ICC profile directory

[Karl Heinz Kremer]

In addition to having a system wide ICC directory, I think it's also 
necessary to check a
user level directory for profiles (e.g. ~/cmm/icc). THis way, a normal 
user without root
access can also install profiles.

A different approach would use just a configuration file (e.g in /etc) 
that would list all
directories that contain ICC profiles. This would allow our system to 
work with other
software packages that dump their profiles in any random directory. We 
should still use
the default directory we've talked about to store profiles, but find 
and load them from
all dirs listed in this config file.

Karl Heinz