Add location JSON parsing
Improve location JSON parsing tests
Show progress HUD for location parsing
Save locations to Core Data after parsing from JSON
Replace specManagedObjectContext with spec delegate MOC
Add custom map view and initial region

- Install ADClusterMapView
Add latitude and longitude to location
Add location map annotation
Add single location map annotation view
Replace ADClusterMapView clustering with CCHMapClusterController

- Also update Cedar
Fix location coordinate JSON parsing

- Make spec location generation more efficient
Refactor location annotation property accessors