Rudder tools

Hi,

on the centos server it doesn't add the "server" alias to the loopback entry.
the root server is called "server" in the vagrant box though, so it starts up but doesn't do it's java things.

The error message to look for is
2016_08_21.stderrout.log.043246497:java.net.UnknownHostException: server: Name or service not known

PLEASE fix this and start testing them. (curl the rudder healthcheck url via vagrant ssh?)
it's broken like for a year.

This is important, because people will use rudder-vagrant to test rudder.
If it's broken, they will have tested rudder and also discarded it.

So for every person who tries to run this on centos, you likely lose them.

Small hint, if you need completion of the box creation, I've very happily used https://github.com/tmatilai/vagrant-proxyconf to set up a proxy in the vm.

Thaaaaaaaaank you ;)