Use berks, refactor the things

[cheeseplus]

• Remove all cookbooks other than habitat_workstation
• Use the Berkshelf (Luke)
• Rakefile revamp
  • add ami:build command
  • builds now log and AMIs are added to results.yml
  • add ami:deploy command
  • generates and deploys a CloudFormation tempalte
  • list:ips lists the CFN Outputs for IP addresses

Signed-off-by: Seth Thomas sthomas@chef.io

[cheeseplus]

Oh and one template for each platform, if you don't want habitat installed setting hab_version=none does the trick.