Add a pitch day
Rationalize routes a bit
Add pitches_controller skeleton
Add ability to add a pitch to a day

- Also fix some bad route naming
Fix bad path helper reference
Add voting round display basics
Add is_open attribute to rounds
Add basics for casting votes in a round
Add ability to create a voting round
Add ability to create rounds - wip
Rename CohortPitchDay to PitchDay
Add deletion of days and pitches
Rename pitch_day to day
Fix voting round numbering
Ballot paper setup wip
Remove turbolinks
Add vote-casting basics
Rename voting_round_votes to votes
Reset form on adding a pitch
Restyle voting page - put padding on ul not div