adds tests
adds tests
unit testing prototyping
end of unit testing
Merge remote-tracking branch 'origin/tests'

Conflicts:
	README.md
	src/test/scala/com/twitter/finagle/exp/zookeeper/unit/DispatchingTest.scala
	src/test/scala/com/twitter/finagle/exp/zookeeper/unit/WatcherManagerTest.scala
	src/test/scala/com/twitter/finagle/exp/zookeeper/unit/session/SessionManagerTest.scala
	src/test/scala/com/twitter/finagle/exp/zookeeper/unit/session/SessionTest.scala
	src/test/scala/com/twitter/finagle/exp/zookeeper/unit/transport/BufTransportTest.scala
	src/test/scala/com/twitter/finagle/exp/zookeeper/unit/transport/ZkTransportTest.scala