Update inventory-window, itempile, voxel-fuel, voxel-land

deathcap/inventory-window@114ce8175a5eaede13c8200250eac1c02a2cd4f5 0.2.4
deathcap/inventory-window@b91e092b85d53e349f7fdc708d971ed206d34484 Cache scaled images, fix lag clearing image
deathcap/itempile@0e90820649ec3f95a74f97007153a63a80eb8c0e 0.2.2
deathcap/itempile@1b71f45c38a959d4a1e3fa0438eba979445e0d4f Fix splitPile(0) to always return false, not 0 or NaN-count piles
deathcap/voxel-fuel@667c3ea3716ebe4da6826e5f61980dabd00305ed Switch to in-memory RTC messenger for now. Ref GH-40
deathcap/voxel-land@1997cdf28fe1786612500277076463a09fa28f54 Firefox doesn't support console in web workers

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