Undo previous fix, add new placeholder for returning user's current n…

…ickname. Also adds cache so that papi isn't just, constantly reading the yml

Attempt at fixing geyser issue

Attempt at a fix for the current version

Update README

Update README.md

fix inconsistency between default and config

Wait I skipped a version

fixed plugin.yml to use simplenick.nick.set as the permission for com…

…mands, implemented permission check on nick, added /help output

change 'simplenick.nick' to 'simplenick.nick.set' to avoid confusion

Update README