Another patch for SHINDIG-912

[etnu00]

Reviewers: shindig-dev,


Please review this at http://codereview.appspot.com/14088

Affected files:
   
java/common/src/main/java/org/apache/shindig/protocol/conversion/BeanJsonConverter.java
   
java/common/src/test/java/org/apache/shindig/protocol/JsonRpcServletTest.java
   
java/common/src/test/java/org/apache/shindig/protocol/conversion/BeanJsonConverterTest.java
   
java/social-api/src/main/java/org/apache/shindig/social/opensocial/service/AppDataHandler.java
   
java/social-api/src/test/java/org/apache/shindig/social/opensocial/service/AppDataHandlerTest.java