Restrict access of contestant
Refactor
Show closed contest
Merge pull request #196 from murooka/access_policy

Access policy
Add enter to the contest. refs #92
Refactor
Add specs
Merge pull request #198 from ryysd/attendance

Attendance
Refactor score#show view
Refactor helpers
Refactor problem#index view
Merge pull request #200 from murooka/refactor_views

Refactor views
Update index.html.erb

Capitalize
Fix layout