[libvirt] Release candidate 2 of libvirt-1.2.20

I have tagged rc2 in git and pushed signed tarball and rpms to the usual place : ftp://libvirt.org/libvirt/ this seems to work fine in my limited testing, but other people need to give it a good try especially on other systems or platforms. Goal is to push the final release on Friday, thanks, Daniel -- Daniel Veillard | Open Source and Standards, Red Hat veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/