Pull in consul for service discovery and monitoring.

Right now, we don't acutally use it for anything, but we set things up
so that the admin node is one of the servers, and the rest of the nodes
are clients.  Sadly, this does not give us HA or failover, but it is a
start.

For more information on consul, check out https://consul.io
Pushed users to dev-systems/README.md
Update README.md
deprecate non-docker dev envs, steal the KVM stuff
basic ubuntu kvm setup - not tested
Update virtualbox.md
Very basic ubuntu OS requirements
Update dev-ubuntu-12.04.03.md
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Rename kvm.md to kvm-ubuntu.md
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Update dev-vm-Fedora.md
Rename dev-vm-Fedora.md to kvm-fedora.md
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Merge pull request #207 from VictorLowther/add-consul-support

Pull in consul for service discovery and monitoring.
nothing