Major update to container related code.

Major update to container related code.

- Make container name in container-related queries case insensitive.
- Implement get_container_list and set_container_list queries for
  associating a container with a list.
- Add a publicflg to containers, analagous to what's already there for
  and update acl'ing semantics to use it.
- Pass associated container list to incremental programs for container
  table incrementals.

Not guaranteed to be bug free, but seems to all work, and it's time to
checkpoint this work.