change to standardize on [%s,%d] for partition
KAFKA-887 Standardize logging for partition information to [%s,%d] format; reviewed by Swapnil and Jun
KAFKA-890 The list of brokers for fetching metadata should be shuffled; reviewed by Joel Koshy
KAFKA-889 Add mbeans to track socket server's response queue size in addition to request queue size; reviewed by Jun Rao and Joel Koshy
KAFKA-892 Change request log to include request completion not handling; reviewed by Joel Koshy
Merge branch '0.8' of https://git-wip-us.apache.org/repos/asf/kafka into 0.8-scala-2.10-stbx
incr version