rename serial to serialNumber
rename serial to serialNumber

thomaschaaf/node-ftdi,thomaschaaf/node-ftdi,KABA-CCEAC/node-ftdi,KABA-CCEAC/node-ftdi,KABA-CCEAC/node-ftdi,thomaschaaf/node-ftdi,thomaschaaf/node-ftdi,thomaschaaf/node-ftdi,KABA-CCEAC/node-ftdi,KABA-CCEAC/node-ftdi