v2.0.2

An open Realm notices a new version. Realm looked for updates once, when it opened, so a Realm
left open for days never heard of a release, and the update button at the foot of the rail, above
your profile, could not appear until it was quit and reopened. It now looks again every few hours
while it runs, and when you come back to its window after an hour or more. The button appears as soon
as a new version starts downloading, and a click restarts into it once it is ready.