Swapping out implementations with those from rewrite app code.
Working from rewrite app to library.
- Using the response parser on location.
- Added separate MKAnnotation gauge class.
Removed some debugging statements.  Using the new gauge "id" value.
Coordinate now lies in location.coordinate.
Removing USGS implementation files.
Added agency.  Renamed agencyCode to agencySlug.
Dumbed down DFGWaterGauge with just properties and parser setting them.
- Added DFGWaterBaseURLStringProtocol.
- Added DFGWaterGaugeDetailRequestBuilderProtocol.
- Added DFGWaterGaugeDetailAPIRequestBuilder.
- Changed HOD file comments.
- Added GOES ID, agency gauge ID support.
Starting to flesh out gauge data retriever and completion of gauge data.
- Added DFGWaterGaugeDataAdder.
- Implemented DFGWaterGaugeDetailAPIResponseParser.
- For now, just setting last height.
Added date maker, starting to use it.
Date maker is now parsing the strings from API.
Trying to ignore cache.
Added "has" properties to gauge for capabilities.
Added unit value to DFGWaterReading.
Adding more data to gauge objects.  Gauge now has past 24 and 7 precip
readings.
- Removed some old files that weren't used.
- Added DFGWaterGaugeReadingsBuilder.
- Now parsing out raw readings for all four value types and setting them
  on the gauge object.
The beginnings of graphing.
Now drawing title on graph.