update to 20.1.0

Changes:

Version 20.1
   MA and kinds rebased on new package Properties (which grew out of the
   old activeattr.py file previously in MA). Masked arrays can now be
   pickled.
   Properties provides a easy-to-use method to have a name act
   as if it is a attribute of the class but be able to control reading,
   writing, and deleting of that attribute via methods of the class.
   Applied patch that fixes errors when Python is pymalloc-enabled (dmcooke).
   Applied patch to add new support in LinearAlgebra for symmetrical
   eigenvalue problems. (Allesandro Mirone)
   Applied patch to fix comparisons to None in MLab.py (jbmoody).
   Found and fixed another one in RandomArray.py.
   Applied suggested fix by Mark Hadfield to let setup_all.py work on
   systems where Python is installed in a directory path that contains
   a space.

Version 20.0
   Redo setup.py so that binary windows installers for Numeric, FFT, MA,
   etc. can be made automatically. Packages LALITE and RANLIB merged back
   to top level. Adjustment for BLAS in setup.py.
   Documentation of Numeric module made more compatible with pydoc.
   argmin/argmax/argsort/sort errors with axis specs fixed (bug #233805)
   -- also made them capable of handling args that can be converted to
      arrays by adding an array(a, copy=0) at the start.
   Fixes sum, product, cumsum, cumproduct, alltrue, sometrue to deal with
   zero shape and to take arguments that can be converted to arrays.
   MA: See changes.txt file in MA for bug fixes and improvements.
       New option for average to return sum of weights.
   Fix bug in putmask so that it handles targets of type object.
   Because of reference counting issues this is done in Python, not C,
   and would not be more efficient than doing your own loop, but we
   include it for completeness.
   In Packages add draft implementation for PEP 0242, Numerical Kinds.
   Add PyArray_CopyArray to the API (Thanks to Dave Grote).
   Add defines for cygwin.
   In arrayobject.h, add static declaration to importing API pointer.
   May solve OS X problems.
   Fix bug in FFT packages, added new test. (Thanks to Warren Focke)
   Added __deepcopy__ method equal to __copy__ method. Throws an exception
   if the target is an array of type 'O'. But this at least allows non-object
   type arrays to be copy.deepcopied. If someone has time they can do this case.

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