Add authorized key support;
Add sample knife scripts
Reorder VMs so that the queue and db nodes are brought up first.
Added 'Generated by Chef' to top of templates.
Added RabbitMQ HA/mirroring support - Not connected to api/worker nodes yet though;
Refined Vagrant file to better accommodate cluster queues; Revamped associated cookbooks as well;
Merge pull request #6 from jfwood/master

Add authorized key and ntp support;