Moved test extension into text spec.
Merge pull request #47 from AshFurrow/move

Moved test extension into text spec.
Fixes .
Updated CHANGELOG.
Merge pull request #49 from AshFurrow/synchronous

Fixes #48
Update CHANGELOG.md
Updated sample to work with status code updates
If a status code is sent back and an error is being sent use that status
code as the error code to allow client code to easily get the failing
status code from the NSError.