New Arduino port

[Warren Block]

A real Arduino port is now in the ports tree at devel/arduino.  This is 
largely due to the ongoing help of Steven Kreuzer.

Arduino is an embedded development environment based on the Atmel AVR 
processors.  It's notable for open software support (gcc and avr-libc) 
and an active user community.  See http://arduino.cc for more details on 
the Arduino hardware and software.

-Warren Block * Rapid City, South Dakota USA