Setup a CI server

[sidkoul]

https://drone.io/ is free for open source projects.

Drone is a hosted continuous integration service. It enables you to conveniently set up projects to automatically build, test, and deploy as you make changes to your code.

Drone integrates seamlessly with Github, Bitbucket and Google Code as well as third party services such as Heroku, Dotcloud, Google AppEngine and more.

[sidkoul]

John has used and likes Travis CI.

Google reveals it's also the most popular. Integrates with GitHub and Heroku, and links into 3rd party services to check code quality, automate browser testing, and check how broad our test coverage is.

https://travis-ci.org/
Runs our test suite, if it passes, deploys to Heroku.
Free for open source projects.

https://codeclimate.com/oss
Automated code review; checks for quality, security bugs, style guide, and test coverage.
Free for open source projects.

https://saucelabs.com/opensauce/
Automated browser testing (desktop and mobile)
Free for open source projects.

https://coveralls.io/
Automated test coverage reporting.
Free for open source projects.