adds Dockerfile
fixes path so Docker runs for everybody...
adds pstotext to Dockerfile
Merge branch 'master' into docker
Shuffling things around for Docker

* Consolidates requirements, provision, and docker directories.
updates Travis file for dir change
Updates to requirements scripts.

An attempt to make it work both with Travis and Docker.
Remove Docker container after run.

Otherwise it piles up multiple containers you probably don't need.
Merge branch 'master' into docker
file rename by request
updates paths in Vagrantfile
move Docker documentation into CONTRIBUTING.md
remove unnecessary file
fix size of sub-headers
Merge remote-tracking branch 'ShawnMilo/docker'