Michael Pope

@IanVaughan @joshuawscott I've just discovered the joy of my app blowing up when there are no Kafka brokers available because of [this raise](https://github.com/kafkaex/kafka_ex/blob/a745ca084dc15517a9e0e06e177b56b9fb8b4eca/lib/kafka_ex/server.ex#L426). It'd be awesome to have an option...

To be specific, I was trying to use the `par` block in Mermaid, and this version doesn't include it. ``` par hehe Alice ->> Bob : sup and hoho Alice...

I don't mind! I got pulled away from ex_lager for unrelated reasons.