v1.1.0

Added

• Spotify links: !play and the clip page's add action accept Spotify
  playlists, albums and tracks (open.spotify.com links and spotify: URIs).
  The track list is read from the public embed page (no configuration, 100
  tracks max) or from the Web API when SPOTIFY_CLIENT_ID and
  SPOTIFY_CLIENT_SECRET are set. Each track is searched on YouTube and the
  best match (duration, title and artist, official video first) is queued;
  tracks without a match are skipped and counted. Nothing is downloaded from
  Spotify.
• GitHub link in the clip page header.

Changed

• Long track titles are clamped to two lines, and queue titles are more
  readable.
• Refreshed demo and showcase (README, project page, social preview), which
  now highlight Spotify links.