kafka-347; change number of partitions of a topic online; patched by Sriram Subramanian; reviewed by Neha Narkehede, Guozhang Wang, Joel Koshy and Jun Rao
kafka-879; In system test, read the new leader from zookeeper instead of broker log on completion of become-leader state transition; patched by John Fung; reviewed by Jun Rao
kafka-832; System Test - set retry.backoff.ms=300 to all test cases; patched by John Fung; reviewed by Jun Rao
kafka-883; System Test - update migration tool testsuite after 0.7 ProducerPerformance sends seq MessageID; patched by John Fung; reviewed by Jun Rao
KAFKA-987 Avoid checkpointing offsets in Kafka consumer that have not changed since the last commit; reviewed by Neha Narkhede
KAFKA-957; MirrorMaker needs to preserve ordering for keyed messages from source cluster; patched by Guozhang Wang, reviewed by Joel Koshy
KAFKA-983; Expose MirrorMaker cleanShutdown method. Patched by Swapnil Ghike.
kafka-959; DefaultEventHandler can send more produce requests than necesary; patched by Guozhanh Wang; reviewed by Jun Rao
KAFKA-991; Reduce the queue size in hadoop producer; patched by Swapnil Ghike, reviewed by Jay Kreps and Joel Koshy.
KAFKA-991; Rename config queue size to queue bytes in hadoop producer; patched by Swapnil Ghike, reviewed by Joel Koshy.
kafka-994; High level consumer doesn't throw an exception when the message it is trying to fetch exceeds the configured fetch size; patched by Sam Meder; reviewed by Jay Kreps and Jun Rao
Merge branch '0.8' of http://git-wip-us.apache.org/repos/asf/kafka into 0.8
KAFKA-915; Mirror maker system tests should wait for topics to be created. (This patch is a work-around until KAFKA-956 is resolved.); patched by John Fung; reviewed by Joel Koshy.
KAFKA-992 Double Check on Broker Registration to Avoid False NodeExist Exception; reviewed by Neha Narkhede and Swapnil Ghike
Misc. minor house-keeping fixes: add reasonable GC settings, fix up README, fix up example configs, fix the logging for tools, use a log directory for logs instead of the root directory.
KAFKA-992 follow up. Fix broken unit test
kafka-989; Race condition shutting down high-level consumer results in spinning background thread; patched by Phil Hargett; reviewed by Jun Rao
KAFKA-999 Controlled shutdown never succeeds until the broker is killed; reviewed by Neha Narkhede
kafka-1003; ConsumerFetcherManager should pass clientId as metricsPrefix to AbstractFetcherManager; patched by Swapnil Ghike; reviewed by Jun Rao
KAFKA-992 follow up: Fix the zookeeper de-registration issue for controller and consumer; reviewed by Neha Narkhede