Implemented __array_ufunc__ for gwpy.types.Array
This PR implements a top-level Array.__array_ufunc__ method that returns scalars as Quantity objects from ufuncs. This will be required to support astropy-3.2, but should be backwards compatible.
This PR implements a top-level Array.__array_ufunc__ method that returns scalars as Quantity objects from ufuncs. This will be required to support astropy-3.2, but should be backwards compatible.