we can remove Rack::Lock - Rails 4 is thread safe

More on this: http://www.intridea.com/blog/2013/6/4/tips-and-tricks-for-deploying-rails-4-apps-on-heroku
Small Cleanup

Closes #49.
Elovation -> Jusk
add latin-ext to font
add newrelic
mediately styling
update README
change timezone and time display format
root to first game
adds slack command

usage:
/pp miha:blaž
meaning miha defeated blaž
congratulate the winner
include GP