Merge pull request #1 from huslage/master

Works on Shippable
Update for ubuntu 14.04

Docker-DCO-1.1-Signed-off-by: Aaron Huslage <huslage@gmail.com> (github: huslage)
Remove version pins. Update for efficient caching.

Docker-DCO-1.1-Signed-off-by: Aaron Huslage <huslage@gmail.com> (github: huslage)