<@U1NH2D3J6> - Discovered the root cause of the te...

# vertx

[napperley]

@julienviet - Discovered the root cause of the tests not working. The Vert.x Web Client lib doesn't work for some mysterious reason, hence the erratic test behaviour. After replacing the lib with OkHttp (http://square.github.io/okhttp/) the tests now work properly. 😄