0.9.6.2-rc

1. Improve user experience from Web UI
   1. Add jstack link
   2. Add worker log link in supervisor page
   3. Add Web UI log encode setting "gbk" or "utf-8"
   4. Show starting tasks in component page
   5. Show dead task's information in UI
   6. Fix the bug that error info can not be displayed in UI when task is restarting
2. Add restart command, with this command, user can reload configuration, reset worker/task parallism
3. Upgrade curator/disruptor/guava version
4. Revert json lib to google-simple json, wrap all json operation into two utility method
5. Add new storm submit api, supporting submit topology under java
6. Enable launch process with backend method
7. Set "spout.pending.full.sleep" default value as true
8. Fix the bug user define sceduler not support a list of workers
9. Add disruptor/JStormUtils junit test
10. Enable user to configure the name of monitor name of alimonitor
11. Add tcp option "reuseAddress" in netty framework
12. Fix the bug: When spout does not implement the ICommitterTrident interface, MasterCoordinatorSpout will stick on commit phase.