Make WebSocketBase an abstract gen interface
Add JsonObject arg constructor for DatagramSocketOptions and OpenOptions
Merge pull request #883 from vietj/master

Improvements for codegen
kind of tried to enabled hazelcast tests but keep commented for now
Provide missing json constructor for options objects
Merge pull request #884 from vietj/master

Provide missing json constructor for options objects
Merge branch 'master' of https://github.com/eclipse/vert.x