Implement seller rating
not completely working rating-state-machine-connection
Add tests for rating (except for good levels in legal entity)
Added and improved tests
Fixed calculations
typo
Implement showing ratings
solved merge conflict
Merge conflict
Merge conflict
Merge branch 'develop' into state-machine
Merge branch 'state-machine' into state-machine-optics
Improved rating view, added neutral percentage
fixed tests for seller_state
implement piwik - fixes #574
optical draft of ratings
solve merge conflict
Added form and tests
deleted empty helper
Merge branch 'develop' of github.com:fairnopoly/fairnopoly into feature-ratings