libvirt security, bug fix, and enhancement update

0.8.2-22.0.1.el5 - Replaced docs/et.png in tarball libvirt-0.8.2-22.el5 - Fix auditing of disk hotunplug operations rhbz710151 libvirt-0.8.2-21.el5 - remote: Protect against integer overflow rhbz717207 0.8.2-20.el5 - Support enabling or disabling the HPET for Xen domains rhbz703193 - SMBIOS suppo...