johnezang/JSONKit — pull request #70 by rabc (2012-02-07 16:33:26+00:00)
Title: Added parse option JKParseOptionNormalizeOnNull

Added parse option JKParseOptionNormalizeOnNull to use an empty string
instead of NSNull class on `null` value.

A client's API return a JSON with 'null' values on server error, so to avoid app crashes while expecting a string, I'm using this new flag.