tests: Add protocoldetector tests

Add tests for protocoldetector.MultiProtocolAcceptor using both ssl and
non-ssl transport.

Change-Id: I3ca9d0013126f3c2cbca05cabb70b0622fabb683
Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/33980
Reviewed-by: Piotr Kliczewski <piotr.kliczewski@gmail.com>
Reviewed-by: Saggi Mizrahi <smizrahi@redhat.com>