Move AddPartitions into TopicCommand
commit the remaining changes
change comments
Merge branch 'trunk' of http://git-wip-us.apache.org/repos/asf/kafka into trunk

Conflicts:
	core/src/main/scala/kafka/admin/AdminUtils.scala
	core/src/main/scala/kafka/admin/TopicCommand.scala
Merge branch 'trunk' of http://git-wip-us.apache.org/repos/asf/kafka into trunk
Add auto leader rebalance support
fix merge conflicts
some more changes
commit missing code
Merge branch 'trunk' of http://git-wip-us.apache.org/repos/asf/kafka into trunk
Address code review feedbacks
use zk for auto rebalance
some more changes
Merge branch 'trunk' of http://git-wip-us.apache.org/repos/asf/kafka into trunk
KAFKA-1199 Add a reduced access log level; reviewed by Guozhang Wang and Jun Rao
KAFKA-1200 inconsistent log levels when consumed offset is reset patch by Dima Pekar reviewed by Joe Stein
kafka-1202; optimize ZK access in KafkaController; also incorporating fixes in kafka-1020; patched by Jun Rao and Guozhang Wang; reviewed by Neha Narkhede and Joel Koshy
kafka-1208; Update system test still to use kafka-topics instead of kafka-create-topics shell; patched by Guozhang Wang; reviewed by Jun Rao
kafka-1205; README in examples not update; patched by Ailing Zhang; reviewed by Jun Rao
kafka-1214; Support arguments to zookeeper-shell.sh script; patched by Philp K. Warren; reviewed by Jun Rao