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
Merge tag 'druid-0.6.93'

[maven-release-plugin]  copy for tag druid-0.6.93

Conflicts:
	cassandra-storage/pom.xml
	examples/config/historical/runtime.properties
	examples/config/realtime/runtime.properties
	examples/pom.xml
	examples/src/main/java/io/druid/examples/web/WebJsonSupplier.java
	examples/src/test/java/io/druid/examples/web/WebJsonSupplierTest.java
	processing/src/main/java/io/druid/query/groupby/GroupByQueryEngine.java
	rabbitmq/pom.xml
fix hadoop version
[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