IPMI driver (bug fixes).
IPMI driver (bug fixes).

Change-Id: I3fc3c8272d4aaa867e10de6aab43d125a3246c4a

openstack/kwapi,stackforge/kwapi,stackforge/kwapi,openstack/kwapi,lpouillo/kwapi-g5k,openstack/kwapi,lpouillo/kwapi-g5k,stackforge/kwapi,openstack/kwapi,stackforge/kwapi,lpouillo/kwapi-g5k,lpouillo/kwapi-g5k