Change clientIF to get port as string and not as int from config.

Change-Id: I3021dc9b25581d1e0078e480764eb1202ee517b5
Bug-Url: https://bugzilla.redhat.com/1163771
Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/35128
Reviewed-by: Francesco Romani <fromani@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>