rails generate scaffold Event name:string finalized:boolean
rails generate migration add_event_id_to_teams event_id:integer
display rankings for given event on show action
Create events#manage action to manage teams and submissions, and replace previous team/submission management system
Consolidate rankings, teams, submissions into event#manage and remove vestigial routes, views and controllers
Compile assets pipeline into public with rake assets:precompile
Restrict events.css rules to .event class in manage.html.erb; remove precompiled assets pipeline
Convert dontsuck.jpeg from a PNG to JPEG format with lossy compression
Change to generic sprint home page
Display 'less than a minute remaining' instead of 00:00
Add submit buttons to forms in events#manage, positioned off screen with css (for Capybara testing)
Set up Cucumber
Add some Cucumber features to test managing events
Provide link to problem on Project Euler for each problem; use /problem/:number URI

Note. Previously the URI was /problem/:id but params[:id] was used
as the problem number not its id in the database. It is probably a
mistake to have an automatic id in this table; the primary key should
be the problem number.
Display Project Euler problem URL as link text
Clarify what Rankings/Manage Event refer to by including event name
Demote 'Sign up and RSVP' from h2 to p
Add links to problem numbers in rankings; allow for "equal 1st"
Remove rankings, manage links from navbar; restore manage link to events#index
Except events#show from using .container and its margins