"Undo" some of the framework changes

These changes seem unnecessary, but are intended to fix the file
redirection issues within CESM.

This commit can be squashed with the previous one if it works in CESM,
and then both would be removed.
Adding sea ice formation flux.

This flux is called the q-flux in POP terms, but it computes the
formation of frazil ice on the ocean time steps.

Currently it's using a hard-coded freezing temperature of -1.8C, and
hard-coded density values which are provided through mpas_ocn_constants.
Fixing some small issues:

Allowing the unit numbers to start at 0, for the case of stderr.

Uncommenting out the 360day calendar.