These have been imported from m-p-d, thanks boyarsh@:

http://git.altlinux.org/people/boyarsh/packages/?p=mkimage-profiles-desktop.git;a=commitdiff;h=ee6f940f6b543cd03e43dbabe66332654cd6f896

...and reworked a bit:
* tree -> flat for representation;
* flat -> tree for implementation.