Upgrade node-webkit & serialport for Mac

Upgraded node-webkit to 0.10.1 & serialport to 1.4.5
This prevents the Mac version from crashing when Board is disconnected
& is the base for proper disconnection & board closing.
Upgrade node-webkit & serialport for Mac

Upgraded node-webkit to 0.10.1 & serialport to 1.4.5
This prevents the Mac version from crashing when Board is disconnected
& is the base for proper disconnection & board closing.