Added app default route.
Logic to find best user per repository.
Use d3js-rails gem
Haml layout.
Add d3.tip.min
Visualizing hourly activity.
Fix api empty response case.
Find most active user over organization.
Fix for repo with no activity
Show most active user user.
Fix if there is no best user.
Fix for case if new user activity.
Rake task to calculate statistic.
Whenever gem to collect statistic.
Make app work in production.
Message if there is no statistic data.
Small description in readme