Rename `container` to `task` about cri

[stevvooe]

We needed to call it something. Providing handles to all the behavior of a container while still calling all of those parts a container was getting unwieldy. We had some period of feedback on the change but didn't receive any better suggestions.

[mikebrow]

Yeah I changed the ones that "had" to change, which was alot, vs all of them. I figured just the ones that had to change was sufficient given that it's just a naming convention and container is the common term. But I'm not going to argue it.

[stevvooe]

So, the task is the running thing and the container is the isolation metadata. The only real difference is that we have a name for the processes within a container.

Let me know if you need help on mapping the model.

[mikebrow]

@stevvooe thx.. understand what it is.. just not a fan of the term yet. Task is one of those overloaded terms, like container :-)

[mikebrow]

maybe session.. but I'd not change it now. I'll learn to like it by substituting task for cmeta or csession in my head :-)

[Random-Liu]

I think we've finished most of this. Let's close this one.