Add test-kitchen to gems
Add test-kitchen config
Add test-kitchen Rake tasks
Add integration test for deploy user
Add integration test for Ruby
Add integration test for God
Add integration test for MailCatcher
Add integration test for Unicorn
Add integration test for Nginx
Add integration test for PostgreSQL
Add integration test for Rails app
Don't try to run integration tests on Travis
Document new testing facilities in README
Merge pull request #16 from mlafeldt/test-kitchen

Add integration tests