Junit Test case for Streaming.
change method name
Modified package name and added java doc
Merge pull request #12 from rajnikumari/2.1

Junit test cases for Streaming
Merge pull request #13 from shantanud/2.1

Fix for import and dependency for gson
Merge pull request #14 from pallavigangarde/2.1

Modified package name and added java doc
Changing the constructors for service class