v5.6.1

Fixed

• The web interface's nature theme separates the cards of ended assignments and
  makes them more compact, so their blurred surfaces no longer run together.
  (#525)
• A conversation or assignment page before its first round now leaves the rounds
  panel blank, and an empty conversation feed invites you to post a comment,
  where both showed a dashed placeholder before.
  (#528)

What's Changed

• Vertical spacing by @alimanfoo in #525
• Three conditionals single out a case where a general rule would do by @alimanfoo in #531
• Conversation before first round by @alimanfoo in #528
• The standard does not say whether a pull request may serve no issue or spec by @alimanfoo in #530
• Reorder development docs by @alimanfoo in #534
• Prepare v5.6.1 release by @alimanfoo in #536

Full Changelog: v5.6.0...v5.6.1