Finally released last.fm support for GSSMP

There was a weird bug in my last.fm support for GSSMP, where it would crash when run from the GNOME panel, but be fine when run from a terminal.

After two bugs fixes from Charles Bailey, the problem seems to have gone away, so I've finally been able to make a release.

Now I have to resist the temptation to choose songs to make last.fm think I'm cool, instead of songs I actually want to listen to.

And I really need to fix the debian/Ubuntu package of lastfmsubmitd so that the client exe lastfmsubmit is included in the package. Without that, using last.fm with GSSMP is a major hassle.