Combination of typo fixes and serious refactoring: sorry for combining those!
Notable refactoring: Box now has its more efficient initial and final walls back.
New power mod, Nether Star, to demonstrate that boxes that large need all the help they can get efficiency wise
New speed mod, Beacon. These aren't that much more practical, just unreasonably extreme. Might be able to nuke an ender dragon with a few shots using double Beacon arrows. Or withers, etc.
TNT snowball now runs a cleanup for drops where the larger explosions begin to nuke entity drops relative to their extremity. Beyond glowstone block TNT there's pretty much no drops even at the edges. This makes double nether star TNT not simply lag out, and makes the mega-boom playstyles playable. You can still multiply regular TNT for drops, though it will cut back on entities a bit even then.