add parma to phasta/chef.cc

This took a bit of guessing:
1) I assume parmaPtn is the control
   in adapt.inp
2) From phParAdapt trunk, centroid was
   commented out but refinement was there
3) I did change vertex-count weighting
   to memory weighting. I think thats
   what we want...
use migration limiting in phasta/chef.cc

in case this feature ever gets used,
lets actually plug it in.