Basis for Cluster integration testing

This branch adds cluster testing via Vagrant.
Requires my branch of the vagrant-maven plugin to work,
which can be sourced here:
https://github.com/parshimers/vagrant-maven-plugin
It is enabled with -DclusterTest=true in mvn verify.
A virtualized cluster with 4 nodes is started, and
then Asterix is started via managix on this cluster,
and then stopped.

Change-Id: I7e3cdcd4162ada19ee1e15f532be7447b4f34367
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/31
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Ian Maxon <imaxon@uci.edu>
Reviewed-by: Zachary Heilbron <zheilbron@gmail.com>
Reviewed-by: Till Westmann <westmann@gmail.com>
Reviewed-by: Chris Hillery <ceej@lambda.nu>
8 files changed