added stepper motor support for EasyDriver (and otehr step + direction drivers) and support for 2-wire and 4-wire stepper configurations
fixed issue with missing pin names
Merge branch 'master' into stepper
added acceleration and deceleration to FirmataStepper
Making sure stepper code is up to date.
Merge commit '9d6243110732dc03741c9c5db1d4246507940fd4' into configurable_onewire_scheduler
integrate stepper into ConfigurableFirmata.ino