KAFKA-1355; Avoid sending all topic metadata on state changes. Reviewed by Neha Narkhede and Timothy Chen
kafka-1337 followup to fix system tests
KAFKA-1366 Multiple Unit Test failures with new producer; reviewed by Neha Narkhede
KAFKA-1356 Topic metadata requests takes too long to process; reviewed by Neha Narkhede, Joel Koshy and Guozhang Wang
Trivial: update javadoc comment for KAFKA-1355
kafka-1352; Reduce logging on the server; patched by Ivan Lyutovg; reviewed by Guozhang Wang and Jun Rao
kafka-1371; Ignore build output dirs; patched by Stevo Slavic; reviewed by Jun Rao
kafka-1370; Gradle startup script for Windows; patched by Stevo Slavic; reviewed by Jun Rao
kafka-1375; Formatting for in README.md is broken; patched by Stevo Slavic; reviewed by Jun Rao
KAFKA-1373; Set first dirty (uncompacted) offset to first offset of the
log if no checkpoint exists. Reviewed by Neha Narkhede and Timothy Chen.
kafka-1364; ReplicaManagerTest hard-codes log dir; patched by Guozhang Wang; reviewed by Jun Rao
kafka-1376; transient test failure in UncleanLeaderElectionTest; patched by Jun Rao; reviewed by Joel Koshy
kafka-1353;report capacity used by request thread pool and network thread pool; patched by Guozhang Wang; reviewed by Jun Rao