Is this delay queue ready for production?

[tobi430]

[changsongl]

There is a beta version for delay queue. It will be released a production one in the end of Aug.

[lchjczw]

Now is ready for production?

[changsongl]

It has been writing unit and integration tests for this project, but I have not used it on my work yet. You could try to use it, and I could fix any problem ASAP.