Initial version of Dockerfile

This requires Docker v1.1+, available by running
`curl -sL https://get.docker.io/ | sh`
Initial version of tests
Add login test
Add nightwatch version of tests
Change Dockerfile to only install bundle

Moved Dockerfile that builds full tree to Dockerfile.dev
Remove old selenium-webdriver tests and switch completely to nightwatch
Add .docker make task

This builds a docker file, complete with bundled Sandstorm
Add grain testing
Bump selenium-standalone version
Add tests for grain buttons
Add Dockerfile as dependency for docker build step
Fix up Dockerfile and run-docker.sh test
Bump selenium version
Add IS_TESTING parameter
Add all types of auth to tests and expand grain tests
Various fixes to get tests running on jenkins
Add note to tests README about running selenium
Add .shell/meteor/local to .dockerignore
Add licenses to testing and Docker files
Add basic usage docs to Dockerfiles