Crash fix for the CsdkWrapper

0.2.1

Update iotivity_wrapper_native.cpp

Initial funcionality is working

In this 0.2.0 release, the data from IoTivity is marshaled correctly to JavaScript and back. Requests with up to four nameless parameters are supported. NodeJS can be a server only. Call iot.start with a request handler to start listening.

Known issues:

• iot will block nodejs from exiting even if start is not called.
• iot methods supported are only GET and PUT
• All responses are hardcoded OC_EC_OK
• max of 4 params is supported