Fixes a lot of weird spellings, grammatical errors, and confusing diction in tools.json.

There's still a lot to be fixed in these files, so expect to see more PRs like this in the next few days.

Somebody keeps trying to shoehorn UK English spellings into the game, which I'm fixing as I go (I know that 'aluminium' is still in there - I'm probably going to make a whole PR just for that irksome spelling) since this game is explicitly set in New England (that being a place in America - this ridiculous re-statement of the obvious is actually necessary since so far I've seen about a dozen illiterates on the forums and in IRC who think New England is somewhere in the UK) American English spellings are the standard.