bump version for pypi issue
Merge pull request #15 from amscins/master

Pass the name of the GPIO to callbacks rather than the GPIO number.
bump version to 0.0.13
- Fixed broke GPIO.gpio_function()  It should now allow calls with the IO Name
- Added unit tests for GPIO.gpio_function()
- Removed type in python export
Merge pull request #18 from zthorson/master

GPIO.gpio_function() Fix
add simple uart test
better error handling of load_device_tree through adc, pwm, and uart