Update contributor info

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
making some tests for stepper
Initial support for the Raspberry Pi
Cleaned up README wording about the Raspberry Pi
Clean up raspi-io board detection

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
v0.7.34

- Raspi-io on-board support

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Add links to all IO Plugins in readme

Thanks: @soldair, @julianduque, @bryan-m-hughes, @voodootikigod!
Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
fix incomplete scheme, thanks @drew_stokes

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Fix typo

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Merge branch 'master' of https://github.com/rwaldron/johnny-five into right-rpm-speed
tests added for stepper
merged tests for stepper