* account for taux,y sign change from atm
* remove custom merge related solely to need to change sign
* change sign for faxa_sen to match ATM export
* use evap from atm directly

* flux_albav moved to _init
* use_nextswcday for using clock instead of scalar field
* min_albedo for setting min albedo used max(min_albedo,....)
* giving a min_albedo value sets logical use_min_albedo, otherwise
false and min_albedo=0
* set mean albdif and albdir via config. If not present, defaults to
current values

* clean up ufs fields exchange by consolidating logical blocks
* remove extraneous trim on fldname variables
* remove conditionals on mediator fields

…updates