Adds gemflie lock
To work with heroku.
Merge branch 'master' of github.com:OpenGenderTracking/gender-api
Merge branch 'master' of github.com:OpenGenderTracking/gender-api
Merge branch 'master' of github.com:OpenGenderTracking/gender-api
Added the gems we are using and were no in the Gemfile.
Adds info to the README.