Changes

Adding a kludgy but functional trimming for the (non-CLUBB) variables that are
processed via the '_calc' key.  These variables are not trimmed like the others
since they are processed in a different place, and therefore the plots will
not have the correct min/max height without this fix.  This seems to matter
for budget lines from non-CLUBB models (no CLUBB variables have the '_calc' key).