BISMG:SarahS/bugs in glimmer cism

Log bugs found in glimmer-cism /parallel version

 * eismint-1 (e1-fm.1)test gave basal temp of ~-3oC at the divide instead of ~-11oC. In glide_temp.F90 wvelintg and chckwvel change to use velocity instead of velocity_hom. Remember no need to make the same change to subroutine gridwvel.


 * eismint-1 (e1-mm.2 & e1-mm.2) temp at ocean - ice boundary was set to air temp for each model level even though thickness=0 and velocity=0.