Log Message:
Update misc/py-anita to 1.25.  Changes from 1.24:

Before running a shell command on the system under test, change the
shell prompt to a more distinctive one to reduce the risk of command
output being mistaken for a prompt.

Support installing SPARC ISOs having a non-numeric suffix following
the version number, such as NetBSD-6.0_BETA-sparc.iso.

Added experimental support for using Xen instead of qemu as the
virtual machine monitor.  This is enabled by specifying "--vmm xen" on
the anita command line while running as root in a Xen dom0.

New command line option "--persist".