update gitignore
update android support library
implement WAMP base class
add WampPeer test case
add WampMessage and its factory class
add WampRouter test case
implement WampBroker
Add unsubscribe and unsubscribed message factory methods
add a method to extract a message type from the message
Replace MessageCreater with WampMessageFactory
Avoid NPE when TestWampMessanger receives a response message
Avoid NPE when the published topic is not subscribed
Broker supports unsubscribe
return error messege when WAMP session is closed
Correct countDown timing of CountDownLatch
Add test cases of Broker
redesign WampMessage
Enable to connect WampPeers each other
Modify a bug that WampGoodbyeMessageImpl create Abort message
Implement WAMP Dealer