Add vendor prefixes to user-select CSS

Fixes 'user-select declaration dropped' warning on Firefox
According to http://stackoverflow.com/questions/8152526/css-3-0-user-select-property-replacement#8152641
"Note that user-select doesn't work in any browsers (that I'm aware of),
and only Gecko and WebKit support the vendor-prefixed equivalents:"
Update artpacks, inventory-window, voxel-texture: rotations; typed arrays on Firefox

deathcap/artpacks@3f11478cd6e2cbe64e717bbe65c2b9dd464bfdc5 Remove the Firefox workaround, superseded by previous commit
deathcap/artpacks@82356f9979ba0ed46f4fcc80ca104b83d647ef2d Pass native typed array to unzip + Update zip module: port to use bops
deathcap/artpacks@2e6a42c796f4b46fd98da69ba2b6134d2386fce4 Add ugly workaround for Firefox, NodeJS Buffer not being an ArrayBuffer
deathcap/artpacks@dfc2b72816ad1e891a9ce515a76c4aa8382fbae0 Require native-buffer-browserify >=2.0.9 for Firefox fix
deathcap/artpacks@ea3408d6ec88c1f0712ab579e52397de3e43031d Update binary-xhr: fix for Firefox compatibility
deathcap/inventory-window@74a3e6e57744d1bca87a98b1116622fe766001f8 Remove invalid unprefixed user-select CSS property
deathcap/voxel-texture@ee95c873064b50601174ea9bc30a9453c6ee01ed Fix all other texture face rotations
deathcap/voxel-texture@e46b39c0d5d78ab8faba62b711518b0d949423d3 Remove materialType and applyTextureParams options

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