Cleanup region flag code, improve readability
Teleport players who leave the start region early
Avoid issues with checking system clock
Regularly-scheduled import cleanup
Implement cosmetic regions. Closes #28

Uses a five-minute per-team cooldown timer for each region
Make InvitationPrompt an inner class, not a helper class
Add support for /scoreboard. Closes #117

Scoreboard support is in beta.
Further refactoring to separate normal and auto lobby modes
Count amount of crafted item by snapshotting crafter's inventory
Don't check block-in-range outside of world boundaries
Fix clock timer to use getUptime, not getStartTime
Fix NPE in practice menu click handler
Copy files from data folder for archive, currently scoreboard.dat
Protect hangings in lobby world
Practice mode is implicit with fewer than two teams