Log Message:
Update molden to version 4.0 - the old distfile has gone away from the
master site, and this package has an interactive fetch stage.

Changes between version 3.8 and 4.0:

	Many bug fixes
	Better support for Mac OS
	Molden format files can now be concatenated into one file
	Molden now fully supports 5D and 7F orbitals
	Added a feature to display an interactive spectrum