please enhance to work with messaging traces

[codefromthecrypt]

In testing zipkin we noticed that a messaging trace doesn't render.

Here is it in zipkin

The data is messaging2.json here https://github.com/openzipkin/zipkin/tree/master/zipkin-ui/testdata

In Haystack it doesn't look so hot :)

[vsen]

@adriancole thanks for the sample data. Will work on fixing this on the UI.

[shreyaa-sharma]

@bulicekj : Can we get back on this.