Explicitly add numpy types for int check
Explicitly add numpy types for int check

At @mwtoews suggestion. numbers.Integral is not portable for numpy
versions < 1.9.

mouadino/Shapely,abali96/Shapely,mouadino/Shapely,mindw/shapely,jdmcbr/Shapely,abali96/Shapely,mindw/shapely,jdmcbr/Shapely