This update fixes the following issues for python-virtinst:
- Update to virtinst 0.600.2
* virt-install: New --memballoon option (Eiichi Tsukata)
* virt-install: Improved qemu/kvm pseries support (Li Zhang, Qing Lin)
* virt-install: Support setting BIOS path using -boot loader=PATH
* Various bug fixes and improvements