Create orb.py

This script does the actual work of changing the BlinkM colors to match the weather.  It's fairly well commented so you should be able to understand what each section does.  Required hardware:

1.  Raspberry Pi
2.  BlinkM (or MaxM) tri-color LED
3.  Adafruit GPIO breakout cable for Raspberry Pi
4.  16x2 LCD
5.  Cross-compiled Overo-M BlinkM binary (I need to post instructions on how I created this...)