BZ#840407 - Create a fake template when moving to backup SD.

This code is repeated twice because the copy in deprecated
moveMultipleImages() will be removed when this image will be
removed in the next version.
All the related fake template code should be removed.

Change-Id: Ibbeef2480e03cc075b80880485739139e496d0b6
Signed-off-by: Eduardo <ewarszaw@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/6519
Tested-by: Daniel Paikov <paikov@gmail.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>