Merge branch 'framework/fix_cellLimitField_leak' into develop (PR #1264)

This merge fixes a memory leak in mpas_block_creator_build_cell_halos by
deallocating the cellLimitField field before the routine returns.

The cellLimitField field is allocated in the mpas_block_creator_build_cell_halos
routine and is only used in a call therein to mpas_dmpar_get_exch_list. If not
deallocated at the end of the mpas_block_creator_build_cell_halos routine, the
memory allocated to cellLimitField would be otherwise be leaked, since there is
nothing outisde of the mpas_block_creator_build_cell_halos routine that retains
a reference to it and deallocates it.

* framework/fix_cellLimitField_leak:
  Fix memory leak from cellLimitField in mpas_block_creator_build_cell_halos

Author: mgduda

src/framework/mpas_block_creator.F

@@ -715,6 +715,7 @@ subroutine mpas_block_creator_build_cell_halos(nHalos, indexToCellID, nEdgesOnCe
      ! Deallocate array and field.
      deallocate(sendingHaloLayers)
      call mpas_deallocate_field(offSetField)
+     call mpas_deallocate_field(cellLimitField)
 
    end subroutine mpas_block_creator_build_cell_halos!}}}