Update to allow direct addressing of pins, use a string to direct address. I.e. InPin("1")
Using the Beagleboards naming scheme will decode to the correct GPIO Pin. So Inpin("GPIO1_23") will decode to GPIO("45");
Determine the reason for not being able to export a pin, and don't throw an exception if it's already exported, I may change this to throw another exception type
Fixing the parsing of GPIO pins
Merge pull request #4 from DougEdey/master

Update to allow direct addressing of pins, and GPIO string decoding