Message10068

I claim this is fixed, including the addition of desired PEP 302 optional methods, by change sets culminating in:
https://hg.python.org/jython/rev/dccf5d04d58e

I'm not *absolutely* sure that all the possible ways we might want to use PEP 302 methods are supported with least surprise semantics. (See also additions to test_classpathimporter.) Where there was no established expectation from CPython, I've used my judgement.

Bottom line:
> java -cp ulib.jar;%JT%\dist\jython-dev.jar;%JT%\dist\javalib\* org.python.util.jython -m u.v.w.x
Init: u\__init__.py
Init: u\v\__init__.py
Init: u\v\w\__init__.py
File: u\v\w\x.py
File: u\y.py