Changes:

* Allow for border shrinking to be configurable in 10 min increments
* Set the minimum number of teams for randomisation to 2

New Features:

Add toggle for showing advancements
Add toggle for Conduit Power

Bug fixes:

Fix friendlyfire toggle on Paper

Full Paper support

Fix mostly harmless award

Improvements & bugfixes to advancements

* Add advancement for winning the UHC
* Fix calculation of MVP advancement

Organise book

Fix regen on Paper

Merge pull request DrHenchman#43 from AlexandreKilian/master

Add a toggle for friendly fire

Update README to v0.18

Fix text colour formatting for Minecraft 1.16, which seems to have

changed how text is rendered