Refactoring based on review feedback
Major changes:
renamed:
src/java/voldemort/client/protocol/admin/StreamingClient.java ->
src/java/voldemort/client/protocol/admin/BaseStreamingClient.java

 renamed:
 src/java/voldemort/client/protocol/admin/SlopWrappingStreamingClient.java
-> src/java/voldemort/client/protocol/admin/StreamingClient.java