v0.6.3

Fixed

• Crash reports flag out-of-date mods first. A Workshop mod whose installed copy is older
  than the newest version on Steam is now always listed as out of date, with both dates.
  Before, an unlisted item (such as a test build) was only reported as "not public", which
  hid the real problem: a stale copy that Steam had not updated yet.
• Unlisted Workshop items are no longer described as unavailable to other players; unlisted
  items still download and update for everyone subscribed.