Upgrade to Hadoop 2.3.0
Merge branch 'master' into hadoop-version-update
upgrade default version in CluHadoopIndexer and merge from master
update default version in docs
Support for postgresql

I think it was the last request using 'end' missing the postgresql support.
[maven-release-plugin] prepare for next development iteration
handle null request uris
Merge pull request #445 from metamx/hadoop-version-update

Hadoop version update
[maven-release-plugin] prepare release druid-0.6.94
[maven-release-plugin] prepare for next development iteration
fix post aggregator
don't override context when not finalizing
restore previous behavior of not optimizing Timeseries post-aggregators
clean up code
Merge pull request #492 from metamx/post-agg-fix-2

fix post aggregator
prepare for next release
[maven-release-plugin] prepare release druid-0.6.95
[maven-release-plugin] prepare for next development iteration
Fix typo in link back to The Druid Cluster page.
fix by segment results

1) fix class cast in by segment results
2) exclude old netty version coming from curator