Merge pull request #18 from lightsofapollo/queue-fixup

hotfix to update to latest queue
Added a packer hack for creating an auto-updating docker-worker AMI
Whatever app.box is it's here
Only shutdown when fully idle
Merge pull request #21 from jonasfj/only-shutdown-when-fully-idle

Only shutdown when fully idle
Merge pull request #20 from jonasfj/packer-updating-ami

Packer updating ami
update package.json
Use taken until instead of fixed number for issuing claims
clear timeout