Installing MIME type handlers

[Ray Strode]

Hi,
> Another important point about this, brought up on #fedora-devel, is
> that the 'desktop-file-install' invocation in the %install phase
> should add the MIME types that are handled, like this:
> 
> desktop-file-install --add-mime-type=... ...
> 
> Otherwise there is nothing for update-desktop-database to see when it
> runs.
It's probably better to just ensure that the proper mime types are added
to a MimeType= line in the upstream desktop files, rather than doing it
at install time.

--Ray Strode