Added MELTING flag which tells the algorithm whether or not the pack was melting previously.  This locks the albedo onto the lower ablation albedo curve until a sufficiently large new snow event resets the surface albedo.
Added MELTING flag which tells the algorithm whether or not
the pack was melting previously.  This locks the albedo
onto the lower ablation albedo curve until a sufficiently
large new snow event resets the surface albedo.

UW-Hydro/VIC,UW-Hydro/VIC,UW-Hydro/VIC