Remove R generic type from ReadStream/WriteStream
- implement basic sender/publiser WriteStream
- provide a body stream on MessageConsumer
Merge pull request #927 from vietj/master

PR for fluent + event bus write stream
Make hazelcast clustermanager more easily programmatically configurable
Some improvements to the http client API
reformat code
Merge branch 'master' of https://github.com/eclipse/vert.x
Refactored