* Changed to make module importable even if ESMP is not available.
* Changed to make module importable even if ESMP is not available.

== Changed ==

* Define _WITH_ESMP to indicate if ESMP was imported.
* Reset the docstring for this module if ESMP is not available. This prevents
  doctests from running (and failing) on machines that don't have ESMP.



csdms/coupling,csdms/coupling,csdms/pymt