Allow plugin to be used on standalone UHC server#2

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TheMrEngMan wants to merge 2 commits intoMezy:masterfrom

TheMrEngMan:master

Commits on Jan 13, 2021

Fixed leaderboards not working if used on the UHC server itself
TheMrEngMan
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Added support to automatically place leaderboards in main UHC server lobby, or in a preset world, depending if plugin is used on a UHC server or lobby server
TheMrEngMan
committed