[Numpy-discussion] Casting problems with new version of NumPy.

[Travis Oliphant]

The code sent by Herbert Roitblat pointed out some inconsistencies in the
current NumPy, that I've fixed with two small changes:

1) Long's can no longer be safely cast to Int's (this is not safe on
64-bit machines anyway) -- this makes Numeric more consistent with how it
interprets Python integers.

2) Automatic casting will be done when using rank-0 arrays to set elements
of a Numeric array to be consistent with the behavior for Python scalars.

The changes are in CVS right now, but are simple to change back if there
is a problem.

-Travis