module MultiJson

def use(new_adapter)

* :jr_jackson (JRuby only)
* :gson (JRuby only)
* :nsjsonserialization (MacRuby only)
* :yajl
* :ok_json
* :json_pure
* :json_gem
* :oj

Supported by default are:
Set the JSON parser utilizing a symbol, string, or class. 
def use(new_adapter)
  @adapter = load_adapter(new_adapter)
ensure
  OptionsCache.reset
end