Fixed maven build when druid is integrated as a submodule
[maven-release-plugin] prepare for next development iteration
reduce memory usage for end points

do not copy entire segments when not needed,
reduces memory pressure on the coordinator when no. of segments is
large enough.
remove duplicate code
improve mem usage for getLoadStatus
Merge pull request #585 from metamx/coordinator-mem-usage

reduce coordinator mem usage
modify whirr documentation
revert changes to wikipedia_realtime_task.json, CliBroker.java, CliHistorical.java
revert changes to wikipedia_realtime_task.json, CliBroker.java, CliHistorical.java
add dependencies for validator error
Merge pull request #586 from metamx/jisoo

modify whirr documentation
address code review
update dep version
fix index task new schema defaults
add default tuning config for index task
fix post aggs with group by in #472
remove commented out code
cleaner way of implementing things
fix bugs wtih js and card aggs
hdfs data segment killer

implement hdfs data segment killer