updated streaming supervision features scorecard (added flink)

added apache flink to the comparison grid of kafka streams, spark streaming, and storm focused on the features they offer the operations side of the devops formula — it measures up well

big data api’s look a lot alike (code comparison with flink, kafka, spark, trident and pig)

exploring the similarity of the APIs from flink, kafka streams, spark (RDDs & DFs), storm’s trident and yes, even good old pig by implementing the canonical word count solution with each framework

topology supervision features of streaming frameworks (or lack thereof)

a smackdown of sort pitting kafka streams, spark streaming, and storm against each other — not for the features they give developers, but for the features they offer the operations side of the devops formula