packaging: setup: backup DB and WAR on upgrade

Change-Id: I97c4da7ff92619551515b652ec17734fced124af
Bug-Url: https://bugzilla.redhat.com/1043314
Signed-off-by: Alex Lourie <alourie@redhat.com>
Signed-off-by: Yedidyah Bar David <didi@redhat.com>