Merge pull request #32 from tripzero/master

reworked zones a bit. removed dead reckoning.
Merge pull request #33 from tripzero/master

Changes related to some suggestions by Vadim.  It's been several weeks with silent consent.
--per meeting in Gothenburg, I updated, where possible, types to integer types with smallest unit of reasonable measurement.  The only float for unit of measure is temperature interior and exterior per discussion on list.
--removed vehicleType from sizeConfiguration
--made pass at making element descriptions consistent
Merge pull request #34 from occops/master

--per meeting in Gothenburg, I updated, where possible, types to integer...
Vehicle interface, availability, data changes

Added Vadim's VehicleInterface and availability proposal.
Added ButtonEvent, DrivingMode and NightMode to data spec