This testmods directory is for running LII tests which compare the answers for a case where
initial condition interpolation is on (use_init_interp=T) to a case with it's off and ensures
they are exact. And to also test that changes in CISM don't change interpolation (see second
paragraph). For the interpolated result to match uninterpolation, it needs to be a case that 
essentially needs no interpolation so it's at the same resolution as the initial condition 
file (finidat file). When surface datasets are changed, or the land-mask is changed, or an 
imporant change is made to model physics (for example where new fields are added to the restart 
file) -- you'll need to update the initial conditions file in this test (finidat file in 
the user_nl_clm file). 

This testmods also turns off the glc two-way coupling. This is done so that
glacier areas are taken from the restart file rather than from
CISM. This is partly so that changes in CISM don't affect the test
results, but more importantly so that LII tests can pass even if CISM
changes. (GLC two-way coupling was off in the generation of the
initial conditions file used here, too.)

To do that run an SMS test that correpsonds to the LII test and copy the resulting interpolated
initial conditions (the "finidat_interp_dest.nc" file) to an updated name with an updated
creation date akin to the location of the current finidat file. Then update the finidat
file pointed to here to that file. The intention is to have both the LII and SMS tests
in the standard test list. At some point we may have a better test that does both of these
at once, all the time, but until then this is the process.

Update finidat file for the LII test of this case:

1.) Run SMS test at same resolution with this testmods directory.

2.) Copy finidat_interp_dest.nc file to new filename in inputdata with updated name/creation date.

3.) Update user_nl_clm in this directory to point to the file in step 2.
