0.9.3_change_list

#Release 0.9.3

New feature

1. Support Aliyun Apsara/Hadoop Yarn

Enhancement

1. Redesign Logview
2. Kill old worker under the same port when worker is starting
3. Add zk information/version information on UI
4. Add nodeport information for dead task in nimbus
5. Add interface to get values when spout doing ack
6. Add timeout statics in bolt
7. jstorm script return status
8. Add logs when fail to deserialize tuple
9. Skip sleep operation when max_pending is 1 and waiting ack
10. Remove useless dependency 11 Longer task timeout setting

Bug Fix

1. Fix kryo fail to deserialize object when enable classloader
2. Fix fail to reassign dead task when worker number is less than topology apply
3. Set samller jvm heap memory for jstorm-client
4. Fix fail to set topology status as active when do rebalance operation twice at one time,
5. Fix local mode bug under linux
6. Fix average latency isn't accurate
7. GC tuning.