Merge pull request adafruit#23 from dherrada/master

Added module name to example filename

Merge pull request adafruit#20 from sommersoft/readme_fix_travis

Update README Travis Badge

Merge pull request adafruit#15 from kattni/pypi

PyPi setup.

Merge pull request adafruit#13 from tannewt/fix_read

Make sure to check every pulse length immediately.

Merge pull request adafruit#12 from kattni/debug-update

Commented out debug print

Merge pull request adafruit#11 from apatt/master

adafruit#6

Merge pull request adafruit#7 from sommersoft/new_docs

Improve Ref Docs

Merge pull request adafruit#5 from tannewt/explicit_return

Add explicit return to avoid implicit None return which doesn't

Add .mpy to .gitignore.

Update to use CircuitPython 2.x branch.