Updated openstack/openstack
Project: openstack-infra/devstack-gate  b9e924505653bbec2152479c62ab3ee4bb84b2b7
null
add some helpfulness to our log output

this makes it more explicit what's going on in devstack gate, some
sane time ranges for operations (so people can figure out if they
are hung), and pointers to logs for each stage.

Change-Id: I3dac0ab7f7f637698753ab9398a8cd6da269017d