configurator.py: sort imports alphabetically

Change-Id: Ida7bc770363838b460db54ec7a269813197c8cae
Signed-off-by: Mooli Tayer <mtayer@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/28654
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>