Localize harvest levels
Rename TinkerToolTweaks to TinkerMaterialTweaks.. because it only changes the materials
Rebalance the Tool Materials to match up with the harvestlevel progression
Make the first harvestlevel require less xp.
Tweaks to materials and comments to elaborate the intended goals
Increase chance of getting Redstone on tools
Make bone slower, but it now requires noticable less xp than flint.
More xp reduction for first mining level