code: function hexToBytes(hex) {
  	var bytes = [];
  	for(var c = 0, C = hex.length; c < C; c += 2) {
  		bytes.push(parseInt(hex.substr(c, 2), 16));
  	}
  	return bytes;
  }
docs: convert a hex value to a byte array
  @param {String} hex string of hex to convert to a byte array
  @return {Array} bytes