fix LQP register callback
prep next release
fix another bug in LQP with concurrency
Merge pull request #674 from metamx/fix-arbitrary-granularity

fix missing queryGranularity in ArbitraryGranularitySpec
[maven-release-plugin] prepare release druid-0.6.140
[maven-release-plugin] prepare for next development iteration
fix yet another bug with LQP
prepare for next rel
[maven-release-plugin] prepare release druid-0.6.141
[maven-release-plugin] prepare for next development iteration
prepare for next release
[maven-release-plugin] prepare release druid-0.6.142
[maven-release-plugin] prepare for next development iteration
concurrency my old foe, we meet again
prep next release
[maven-release-plugin] prepare release druid-0.6.143
[maven-release-plugin] prepare for next development iteration
Merge branch 'master' into druid-0.7.x

Conflicts:
	cassandra-storage/pom.xml
	common/pom.xml
	examples/pom.xml
	hdfs-storage/pom.xml
	histogram/pom.xml
	indexing-hadoop/pom.xml
	indexing-service/pom.xml
	kafka-eight/pom.xml
	kafka-seven/pom.xml
	pom.xml
	processing/pom.xml
	rabbitmq/pom.xml
	s3-extensions/pom.xml
	server/pom.xml
	services/pom.xml
Merge branch 'druid-0.7.x' of github.com:metamx/druid into druid-0.7.x