Perf boost for banned logout.

Banned players no longer have their data saved on logout.
Faster database mode boot.

Reduced # of DB queries.
Login cooldown to seconds.

Default to 60 seconds instead of 2 minutes.  Now configurable in
seconds.
Removed option "no building outside claims".

Not sure any design for this would actually work well for anyone.
Shouldn't have added it in the first place.
Removed option to disable auto cleanup in creative mode.

Disabling this results in a big time opportunity for griefers, who can
just move their land claims around to build without limits.  Now it is
always on, so any builds left behind will vanish.
Removed donation chests option.

This isn't an anti-grief feature, so it belongs in an extension plugin.
Reduced noise from build warning.

Building outside of land claims now triggers many fewer warnings, and
those warnings are now always on.  They're also more helpful - a link to
the claims tutorial video is included for players with less than 2
claims.
Eavesdrop by default.

On by default, and now including /w and /t by default.
More helpful new player messages.

Shortened new player messages to emphasize the tutorial link.  Questions
asked on the test server over the years indicate many players try to
muddle through using only the text rather than watching the video, or
don't read the entire text and see the video link.
BugFix: Stack overflow in database boot.

Oops.
Tweaks: Build outside claims warning.
Tweaks: Build outside claims warning (2).

Less messaging for players who already have land claims.
Version to 8.3