If someone attempts to resubmit an existing url, redirect to existing comments instead of submission form.
Move submit time under title on index to save horizontal space.
Merge pull request #95 from cgroner/redirect-to-existing

Redirect to existing comments on duplicate submission.
Merge branch 'pr/97'
Merge remote-tracking branch 'upstream/master'
Inspired by PR #97 moved more stuff below the title and reduced column counts, should improve mobile experience too.
Merge pull request #99 from kennethrapp/master

Set some secure default headers, and type checks in main.js
Merge remote-tracking branch 'upstream/master'