Merge pull request #2 from banana-slugs-2014/travis

Add .travis.yml to root directory. Configure continuous integration
Merge pull request #3 from banana-slugs-2014/travis

Travis
Initial omniauth setup
Adds initial user model migration
Merge pull request #4 from banana-slugs-2014/users_vertical

Users Vertical - initial migration
Update travis.yml.

Add additional database script tasks to be run.
Specify environment database.
Add config/database.travis.yml file for
configuring database for tests.