sp. and flow control in submission route
Replace /submission/:id/review with /submission/:id
Disable form if not a reviewer
Add disqus_shortname to config
Style form to have disqus comments alongside
Supply disqus_shortname

Also coerce canReview to a boolean
Make sure later years trump earlier years
Merge branch 'feature/272' into feature/281
Select entries by year lte "year"
Allow formatting for dateformat
Bugfix place & pass through "display_year"
Output "old year" column if exists
Old "old" marker column
Localise 404 for entryByPlaceDataset
Redirect changed to /submission/:id
Post now to /submission/:id
Don't require login for submission page
Handle falsey user for canReview
Whitespace changes for tests
"canReview" needed for form-core