vdsm: support VIR_MIGRATE_ABORT_ON_ERROR

Abort VM migration on EIO by default. The flag is supported
since libvirt 1.0.1 upstream, so use it only in appropriate
cluster versions.

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=961154
Signed-off-by: Peter V. Saveliev <peet@redhat.com>
Change-Id: Ic7f715c51f28ef2cd01fb95d42553ca10c79ea80
Reviewed-on: http://gerrit.ovirt.org/17422
Reviewed-by: Michal Skrivanek <michal.skrivanek@redhat.com>
Reviewed-by: Antoni Segura Puimedon <asegurap@redhat.com>
Reviewed-by: Saggi Mizrahi <smizrahi@redhat.com>
Reviewed-by: Vinzenz Feenstra <vfeenstr@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>