fixing Ambiguous __all__ in ../weights/util.py
fixing Ambiguous __all__ in ../weights/util.py
AlanZatarain/pysal,Alwnikrotikz/pysal,tectronics/pysal,AlanZatarain/pysal,Alwnikrotikz/pysal,AlanZatarain/pysal,tectronics/pysal,Alwnikrotikz/pysal,tectronics/pysal