CTI to XML conversion works with either new or old Python module

git-svn-id: https://cantera.googlecode.com/svn/cantera/branches/2.1@2499 02a645c2-efd0-11dd-984d-ab748d24aa7e
[SCons] Fix Python module path in setup_cantera and post-install message

In particular, this fixes paths for Linux distros that put Python modules in
'lib64/pythonX.Y/site-packages'.

Also fixes the reported installation path for the Python module on Windows.

git-svn-id: https://cantera.googlecode.com/svn/cantera/branches/2.1@2500 02a645c2-efd0-11dd-984d-ab748d24aa7e
[Cython] Fix generation of MSI installer when using Python 2.x

The old patch to distutils only worked on Python 3.x, since distutils
uses old-style classes which do not support property objects.

git-svn-id: https://cantera.googlecode.com/svn/cantera/branches/2.1@2501 02a645c2-efd0-11dd-984d-ab748d24aa7e