V2 Parking API candidate 1

Fully functional api including UW Madison lot info.
Merged city and uw lots in to single array

After considering consumer experience, thought it would be easier to
have a single array of lots, with properties to identify city vs. uw.
Added special events caching and geo coordinates

A little perf testing showed api response times at about 1100ms-- not
good. Was planning to cache special events at some point bur realized i
needed it now. Times down to 500-600ms.

Also added geo coordinates to response payload to avoid Google's (or
other provider) geocoding limits.