mime types and file icons

[Gérard Milmeister <gemi bluewin ch>]

As I understand it, the new mime type system uses /usr/share/mime
and /usr/share/applications. Are the former locations /usr/share/mime-
info and /usr/share/application-registry now irrelevant. Previously the
icon for a file type was set in .keys file, but I don't see how to do it
in the new system.