Fix [
3527842 ].
Under Python 3, converted tests and tools are now
stored in the ``test3/`` and ``tools3/`` sub-directories and not
installed in the PYTHONPATH.
In order to make this work:
- Make tests independent from the location of the ``test/`` directory.
- Use converted sources from the ``build/`` directory for tests under
Python 3.
Remove functional/tests/stylesheet_path_html4css1.py made
redunant by functional/tests/math_output_html.py.
git-svn-id: https://docutils.svn.sourceforge.net/svnroot/docutils/trunk/docutils@7437 929543f6-e4f2-0310-98a6-ba3bd3dd1d04