Added engines section to package.json
Updated config.json for Metrics
Fixed config.json
Fix updating total player count
Added Heroku support
Merge branch 'heroku'
Added instructions for deploying to Heroku
Updated OpenShift deployment instructions
Deploy to Heroku as well as OpenShift
Updated .travis.yml
Updated config.json
Removed OpenShift-specific environment variables

This is handled by the OpenShit production_host now
Updated OpenShift production config