Make libvirt LoopingCalls actually wait()
Make libvirt LoopingCalls actually wait()

 * Adds wait() to all the LoopingCall timers
 * Fixes loopingCalls in baremetal/proxy.py as well
 * Includes failing test to verify result from destroy
 * Fixes tests depending on improper behavior
 * Fixes bug 1015355

Change-Id: I9e1914c446170e49f0aab76c7745b55d12132425

n0ano/ganttclient