Limiting the number of Jobs run at a time.

[ethanahlquist]

Some systems limit the number of bsub jobs a user can dispatch at a time.

It would be nice if this library could create the group of jobs, that limits the number of jobs running at a time, launching the next logical job in the queue when a previous Job slot opens.

Sorry if this is an inappropriate request of this library; its been a while since I've made an issue for a project.