Order by ID rather than at last update time

The current ordering is based on what appears to be a random ordering
that happens to correlate to the last time the paper was submitted or
updated. Oldest to most recent.

This changes it to submission order so ordering doesn't change and ID is
a static, making it easier to move through a list of papers. "I last
looked at 24, so 25 is assured to be the next one I want to look at.

There's the thought of updated papers being looked at and voted on, but
it does not seem to me that this is supported or possible. In general
one would look at their un-reviewed list, and go off it, which puts
updates out the window.

We can certainly order on other fields if desired, but this one makes
the most since to me.