* Add support for all visual blocks to be changed in config.
* Add config setting 'hide-wecui-drag-visuals-2d' to disable drag
visuals while in 2D mode (true by default)
* Fix start block visual disappearing when second block overlaps an
existing claim.
* Fix second block point on existing claim corner starting a resize.
* Fix all active visuals disappearing when starting a resize.
* Fix some lang issues.
* Add WorldGuard migrator.
Note: This does not support custom flags atm.
* Add message cache for all messages that do not use parameters.
* Refactor option permission lookups.
* Update kyori text dependencies.
* Minor cleanup.
en_US lang will be delivered with assets and will no longer be generated.
The remaining translation files de_DE, ru_RU, and zh_CN have been
removed as they will need to be translated in the new format.
Thanks to Glare for the help making this happen. Closes#9