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
minor typos fixed
fix a NPE leading to broker 500 response
Merge branch 'master' into igalDruid
switched operations and ingestion sections
Merge pull request #461 from metamx/igalDruid

Igal druid
Merge pull request #460 from liquidm/fix_npe_in_groupby

fix a NPE leading to broker 500 response
make index file acl consistent with descriptor
enforce acl on object move
Merge pull request #462 from metamx/s3-consistent-acl

S3 consistent ACLs
fix missing arg
Merge pull request #463 from metamx/s3-consistent-acl

fix missing arg
fix context to be backwards compat
cleanup
be able to set maxPendingPersists in plumber
fix query forwarding
fix case with no request params