Started implementing the automatic starting of the server VM

Change-Id: I3f5ea9798fb936546e9ade166d62d463fedb13fd
Added stoprunagent and many small fixes

Server start/stop is now a service method

Added script to run at machine boot.

Change-Id: I3328cce7e9cc45ab0dda32771f7c1926018657ab
Implemented the checking of the existence of jobs

StopAgent now commits suicide at the end of its run when
the VM was killed

Check that instance exists before trying to change its
properties

Start the StopRunAgent at the same time as the SubmitAgent

Change-Id: Icfd527e9e953737eb876f06dc3c4c78d90163567
Better DB interface

Change-Id: If5497c68b7c6019fe856499c038de07da3ee351c
Fix

Change-Id: I28fa9d7d4116bde213a8ac4737a7e8b9bbe7a0ec
Make the shifter the VMManager

Change-Id: I03230978a20f8baa9903b3093daa03853b867320
Fix imports

Change-Id: I610a4617acb27d262c66ae7a106dded2bae5b525
Implemented the checking of the existence of jobs

Change-Id: Iaf6a978ab0dc29bd4e095ead1e8ba5c084266702