Refactored mappers to decouple them from accessors.

Only mappers that require accessors receive them from the HYDMapping protocol. Mapping dictionaries are now different.
Updated cedar
Updated travis ci to use latest ios-sim
Added error handling for failing setter accessors using object mapper
switched to private cedar repo
Added cd .. to travis
Reverted back to installing ios-sim from homebrew
Updated cedar to point back to pivotal fork
Made Hydrant errors lazy for performance (with tests).

Fixed gender enum to be the correct prefix.
Minor refactors.
Documentation and spacing.
Added HYDMap functions that take arguments in reverse order. Whitespace tweaks.
Updated cedar
Dead code elimination pass.
Use NSCache instead of NSMutableDictionary for thread safety.
Fixed bad cedar version. Whitespace
Added more warnings. Fixed some analyzer error.
Inlined some functions. Converted to test bundler runner for CI
Added hydrant test schemes as targets
Fixed rakefile to generate the cedar framework

since xcode doesn't copy to the build products directory correctly.