Updated openstack/openstack
Project: openstack/sahara  27e46203cdce21b79fbbd2737918a80484837048

Update oslo-incubator loopingcall module

Changes -
 * Changes calcuation of variable delay
 * Use timestamp in loopingcall
 * Log the function name of looping call

Change-Id: Iebe6913d731b4cee105c11abf7007ec13f0f5787