Setup improved

The basic idea is to split the setup into a one-time Cuckoo installation and system setup and a creating-virtual-machines setup. The last script can later be added to vmcloak or maybe even be simplified by adding a batch feature to vmcloak and just have a simple sh script using that. I assume people will create several batches of VMs, Maybe several times a week. How to proceed now depends on the way vmcloak will handle batch.