Release v0.9.9-pre1

Pre-release version for testing.

Bug fixes

• Fixes the on proxy player connect event firing while switching servers on Velocity.
• Fixes potential network variable errors.

New features:

• Syntax to register and deregister servers from the proxy dynamically:
  • register [a] [new] server [with the proxy] [(named|called)] %string% with (IP|address) %string% [and] [with] port %number%
  • (de|un)register [a] server [from the proxy] [(named|called)] %string%

As ever, report bugs if needed!

Full Changelog: v0.9.8...v0.9.9-pre1