Time to reserve

[contentfree]

I see you closed this PR. There's stuff in here that would be beneficial to Backburner. Maybe split the PR up into several, more-specific PRs.

[xinuc]

Hi @contentfree, sorry, this PR should be for our own fork, not upstream.

Github makes it too easy to create PR for upstream.

[contentfree]

We're certainly open to some upstream PRs. Especially the current thread storage of the connection. We'd like to hear your reasoning on keeping connections open vs keeping them cleaned up.

[eltone]

As a counterargument, I would say that the new connection per enqueue approach does better support the case where a pool of beanstalk servers sit behind a load balancer.

[contentfree]

True true, @eltone