Merge pull request #73 from sunryuan/master

merge and fix bugs
Merge pull request #75 from sunryuan/master

bug fix
Initial ACL
enhance pool validation
Fix duplicated timeout log bug
do not update creator when Update task
Spring job supported
Spring Job Supported
Spring Bug Fix
Delete unused file
Add log for JarExecutor
Merge pull request #78 from sunryuan/master

OK
Spring jar bug fix
solve merge conflict
Confict solved
Improved Log
Bug Fix
Add more log
Add log
Bug fix