Removed zk references from realtime config
Merge pull request #231 from rjurney/master

Removed zk references from realtime config
1) Add unit test for groupBy query with dimension that doesn't exist
2) Fix group by query to work with new unit test, fixes #232
Merge branch 'master' of github.com:metamx/druid
[maven-release-plugin] prepare release druid-0.5.49
[maven-release-plugin] prepare for next development iteration
Merge branch 'master' into guice