Cut down on duplication!
Moved site and key binding into StacManClient since they appear to be used for all requests.
Switch StacManUserMethods to use property rather than ivar.
Moved constants to StacMandConstants.  Removed redundant constants.
Overhauled StacManUserMethods to match shorter style.
Use id instead of NSObject.
Ignore .idea

Started using AppCode for refactoring.  No need to share the files.
Fixed typo.
Updated StacManMethods, broke two way couple for users/sites.
Applied styles from StacManUserMethods to StacManQuestionMethods.
Converted StacManAccessTokenMethods.
Got rid of parseArray:, started replacing NSNumber* with NSInteger, inserting nonatomic.

 - `parseArray:` was doing the same thing in all instances.  Replaced
it with a univeral `ParseArray()` function to support `Parse()`.
- Key Value Coding automatically converts NSNumber to the correct
storage type.  Unless `nil` is meaningful, using standard storage types
is easier for programming.
- Unspecified properties are coded as atomic which introduced a
significant performance hit (theoretically; that's why `nonatomic` is
so common in iOS).  Since these properties are set once in a single
thread, there is no expected threading risk that would preclude
`nonatomic`.
Finished transforming models.