Refactoring.
Add vagrant builders.
Hack to get extra dedicated slave.
Actually add vagrant builders.
Gah. *headdesk*
Stuff.
Stuff.
Stuff.
Don't upload.

Buildbot is slow to upload.
Actually build the tutorial box, for the tutorial builder.
Specify build-server to vagrant build step.
Fix URL.
*headdesk*
Use consistent date when merging forward.
Fix git date generation.
Add lifecycle json for vagrant bucket.
Upload vagrant box.
Add a note about storage.
Support multiple dedicated slaves in a class.
Install gsutil.