readme tweaks
Merge pull request #7 from bmidgley/mordocs

Readme tweaks. Thanks bmidgley! :D
Added button-press reporting, and eliminate rounding errors when rate approaches zero.
Merge pull request #8 from daoswald/master

Added button-press reporting, and eliminate rounding error if rate near 0. Thanks daoswald! :D
support button-up events
Merge pull request #9 from bmidgley/buttonup

support button-up events. Thanks bmidgley!