[Mitgcm-support] obcs updates

[mitgcm-support at dev.mitgcm.org]

exf_getobcs : needs OBCS_OPTIONS.h before the subroutine starts.
exf_readparms: needs OBCS.h.
exf_getforcing: never answered the question that you posed in the code
                regarding which timestep to use.
exf_apply_tloc:  my version of this s/r is different than on the web.
                 my version has extra ifdefs for each N,S,E,W boundary,
                 but one (I believe South) was put in the wrong place.
                 ENDDO was on the wrong side.
exf_set_obcs : We already discussed this. Common blocks missing.

thermodynamics: #ifdef EXTERNAL_FORCING_PACKAGE, then obcs_calc should
                 never be called. 

input:  I have new bathymetry files which reflect open boundaries (2 
           deg.)


Thanks,
Jake