v3.0.0-alpha.6

[v3.00-alpha.6] - 2018-02-26

Added

• Visual priority-rule builder for tasks when creating/editing challenges.
• Support for overpass turbo @id feature property when editing tasks.
• Live preview of Markdown content during editing.
• Restoration of challenge-owner map state when returning to it (#123).
• Option for challenge-owners to export challenge comments as CSV.

Changed

• Users can comment on a task regardless of task status (#113).
• Ignore unclustering setting on challenge-owner map and always cluster tasks
  if more than 1000 tasks would be visible.
• Unclustering option only shown when at most 1000 tasks would be visible.

Fixed

• Don't fetch task data if tasks are still building or failed to build (#127).
• Properly url-encode comments sent to external editors.