[Bug] Crash and config typos

[HurtsAsHell]

If disable the miner but don't disable the filler upgrade, the game crash in the startup ( #372 );

blocks {
    # Capacitor Block is enabled (requires restart) [default: true]
    B:capacitor=false

    # Tree Chopper Block is enabled (requires restart) [default: true]
    B:chopper=true

    # Crafter Block is enabled (requires restart) [default: true]
    B:crafter=true

    # Killer Block is enabled (requires restart) [default: true]
    B:farmer=false

    # Generator Block is enabled (requires restart) [default: true]
    B:generator=false

    # Animal Farmer Block is enabled (requires restart) [default: true]
    B:killer=true

    # Miner Block is enabled (requires restart) [default: true]
    B:miner=false

    # Planter/Harvester Block is enabled (requires restart) [default: true]
    B:planter=true
}

Animal farmer and killer block are inverted;

I've disabled the capacitor, the miner, the killer and the capacitor but the game don't disable it.