• update Retina to v0.4.21, fixing TP-Link Tapo cameras which failed 15
  seconds into each session with an RTSP framing error.
  Fixes #342 and
  #361.
  Also fixes some Dahua NVRs and Rubetek cameras which send unusual ssrc
  values.
• moonfire-nvr config: clarify that the full amount must be typed to
  confirm deletion when lowering retention.
  Fixes #362.