congruity-13 released

Update MIME types in .desktop file. Patch by Adam Williamson <awilliam@redhat.com>. Apparently, these new MIME types match what the Logitech server sends when you perform a download; see https://bugzilla.redhat.com/show_bug.cgi?id=506536#c12. However, Fedora still packages definitions of these MIME types as part of libconcord. Packagers for other distributions should double-check the Fedora packaging of libconcord; see file libconcord-0.21-mime-type-def.patch which adds file concordance-0.21/libconcord/libconcord.xml to the libconcord sources.