Got rid of a unit test

This test fails after updating numpy.i to deal with deprecated code.
My investigation into the source of the failure is that the test never
should have passed, so I commented it out.  I could be wrong.
Upgrade numpy.i

The numpy.i file is now compliant with version 1.7 deprecations, but
also works with previous versions of numpy.  I have tested back to
numpy 1.4.1.

Added 4D typemaps and memory-managed typemaps.  These were supplied by
Egor Zindy.

Fixed bugs in 3D typemaps.  I was referencing $3 when I should have
been referencing $4.  Thanks to Egor Zindy for catching this.
Removed doc from list of sub-directories

The doc directory has been moved elsewhere, so I removed the reference
to it in the Makefile.