Stepper examples might need delay

[caternuson]

These simple loops:

for i in range(100):
    kit.stepper1.onestep()

might be running too fast.

See here:
https://forums.adafruit.com/viewtopic.php?f=24&t=154449&start=15#p762144

[ladyada]

kk wanna add a time.sleep(0.01) in there?

[caternuson]

Probably worth setting up and verifying the delay amount. I was just guessing at the 0.01 value and sounds like maybe it needed some tweaking. I could take a look, but don't think I currently have any of the PCA driven stepper HW. Only Crickit.

[ladyada]

any delay will work, i can do the commit

[dhalbert]

Fixed by #19.