Unable to update or delete task when the tasker demon running

[liuyi-cui]

Hi，
i saw the Tasker's properties are private. Can u add corresponding interfaces?

[adhocore]

hello, we can keep the properties private but expose Funcs for these operations (guarded by a sync.Mutex).

would you be interested for such a PR? thanks

[liuyi-cui]

Sure，it can solve my problem. Thanks。

[adhocore]

no prob, would you like to create a PR?

[liuyi-cui]

i will try.