constructor_cident_of_prim now takes an optional module name.
Rename Cstubs_generate_ml.fn to Cstubs_generate_ml.extern.
Use abbreviated module names in generated code.
Only fully-qualify the first field name of each record pattern.
Improve indentation for generated `external` bindings.
Merge pull request #137 from yallop/stubs-abbrev

Improve formatting of generated ML
WIP.