druid-kafka-indexing-service needs upgrade to kafka v0.10

[sixtus]

Kafka v0.10 is out and it seems prudent to keep the indexer on the newest version (especially since there was a protocol change)

A simple bump in the pom is not enough.

[dclim]

Also see: https://groups.google.com/forum/#!topic/druid-user/CmAgH897WiU

[gianm]

This was done in #4115.