Enhanced：

1. [EasyScheduler-597] child process cannot extend father's receivers and cc

Repair：

1. [EasyScheduler-516]The task instance of MR cannot stop in some cases
2. [EasyScheduler-594]soft kill task After the process still exists (parent process child process)
3. [EasyScheduler-569] Timed tasks can't really stop

增强:

1. [EasyScheduler-597]child process cannot extend father's receivers and cc

修复：

1. [EasyScheduler-516]The task instance of MR cannot stop in some cases
2. [EasyScheduler-594]soft kill task 后 进程依旧存在(父进程 子进程)
3. [EasyScheduler-569] 定时任务无法真正停止