Add client install option to disable logout over SOAP
This is at least somewhat for testing to ensure that
a mixed environment works but HTTP Redirect is the
recommended mechanism in the spec so some may want
to use only that.
https://fedorahosted.org/ipsilon/ticket/59
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-by: Patrick Uiterwijk <puiterwijk@redhat.com>