Phi-2 shield test code updated

Mistake was spotted (thanks Jim!) and corrected on phi-2 shield testing code. The new code is loaded the the google code page:

http://phi-prompt-user-interface-library.googlecode.com/files/Phi_2_testing_v2%2009242011.zip

I was updating the phi-1 shield testing code and didn’t change the pin definitions back to phi-2 shield 🙂