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
Changed port number for realtime server from 8080 to 8083 to make the exaxmples work with the new realtime config.
Merge pull request #233 from rjurney/master

Changed port number for realtime server from 8080 to 8083 to make the ex...
[maven-release-plugin] prepare release druid-0.5.50
[maven-release-plugin] prepare for next development iteration
Add aggregations module
WIP - SerDe Testing
Merge