This switches virt-sysprep to use guestmount instead of guestfish.
This makes the script a little bit easier to modify for sysadmins.
This commit also adds:
- dhcp-client-state
- dhcp-server-state
- logfiles
- random-seed
- smolt-uuid
- yum-uuid
SELinux relabelling, and a section on security in the manual page.