Setup Continuous Integration

[BrianZanti]

Set up continuous integration using Travis CI

1. Go to https://travis-ci.org/ and set up your account
2. Add this project to your repositories. You can do this from the main dashboard page by clicking the plus button next to My Repositories
3. Configure your YOUTUBE_API_KEY environment variable for your travis environment. You can find configuration for environment variables by selecting your repository from the travis dashboard and clicking More Options -> Settings.
4. Configure deployment to Heroku by filling in the api_key and app variables in the .travis.yml file. Use this guide as a reference.

You can test that your travis set up is working by pushing a commit to your repository. You should see a build triggered from the Travis dashboard. When the build is complete, you should see the change automatically deployed to Heroku.