reconsider list requirements

[arlin]

We ran into a problem with a list not being processed because had NA or blank for the "published" date. This is undesired behavior, because users may wish to submit lists that are not published at all.

The issue is to re-think what we are requiring. Which fields are essential for which use-cases? Which fields are essential for all use-cases?

Write a brief description and analysis of this problem and present it to the group for discussion. Then we will make decisions about how to implement lists, and document the requirements in our docs.