Add extras and build scripts

build/arduino.avr.uno/scripts/flash.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Stop ser2net to free serial port
+service ser2net stop
+
+# Flash the firmware
+avrdude -v -p m328p -F -P /dev/serial/by-id/usb-Arduino__www.arduino.cc__0043_95032303837351D02141-if00 -c arduino -D -U flash:w:../vremenska-postaja.ino.hex:i
+
+# Start ser2net
+service ser2net start