Phew. localized levelling up. With proper coloring now.
Change Boost-XP modifier to 1.12 from 1.15 and add a config option for it. It was a bit excessive with the new mining level added in between.
Fix a derp that caused stone tools etc. not having mining level display
Fix bowstring (and possibly other toolparts) not having a tooltip
Part replacement correctly adds missing boost-xp on upgrading, but disallows downgrading to stone-level-heads.
Fix part-replacement not working with custom recipes. This fixes bow-part-replacement.
Add tooltips to mobheads to show their mining level boost
Enable mining level nerf by default because otherwise mining levels are fucked up by default.