v0.17.1

A small patch: Lit Inspector is now on Firefox Add-ons, and the Timeline list
no longer jumps back to the newest event while you read further up. Nothing
needs action to upgrade.

Added

• Lit Inspector is on Firefox Add-ons. Install it with Add to Firefox
  from addons.mozilla.org and Firefox keeps it up to date, instead of loading
  a temporary add-on from a release after every restart.

Fixed

• The Timeline list stays where you scrolled it. New events no longer
  pull the list back to the newest row while you read further up, open an
  update or follow an #event= link; at the end of the list it still follows
  them, now all the way to the last row.