Oh and could the common licenses be added also, i.e. all the cc licenses, the gpl and apache also.
I'll poke Corey to install rsvg, which is needed before I can allow svg files (or they can't be rendered, which would suck). As for the licenses, you can actually do that yourself by editing a few pages in the MediaWiki namespace. I'm not sure what they are offhand, but you should be able to find them after searching Special:AllMessages on Wikipedia and copy/pasting the relevant ones here.