If the request doesn't include a callback, let the normal JSON handler take care of it. This solves the potential for a StackOverflowException
This example causes a StackOverflowException when viewed with the code prior to 321df33a88af27886fccb6ed74f437f055410f07
Merge pull request #11 from freakingawesome/master

Fix a StackOverflowException when callback parameter is not present by reverting to default JSON Formatter