Merge pull request #3 from paliwalashish/master

minor refactoring and added docs
Minor fixes to the RPC Client apps.
Adding JMS Converter unit test.
Remove Netty Message Source
Changes to ProtoBufDeserializer and add tests.
Remove Random Generating Pollable Source
Add Unit tests for Stock Ticker Source.
Remove Netty Sink
Test for AsyncHBase serializer
Add tests for ProtobufSerializer
Add length of event before every event
Fixes to S3Sink.
Add tests for CounterInterceptor
added some doc, fixed unused imports and minor error in displayed in editor