* Updated urllib + urllib tests
* Updated http + test
* Annotated failing tests
* Fixed issues in httpservers, robotparser and urllib2net
* Fixed windows only success
* Annotated flaky test in test_logging
* Updated the wsgiref library + test
* Uncommented fixed wsgi tests
* Updated the xmlrpc library + test
* Added expectedFailure to test_request_length in test_wsgiref
* Annotated doc_xmlrpc test failures/errors
Initially this is only meant to be a small update for `test_io.py`.
But it turns out that `test.support` need a lot of cleanup especially
for `test.support.warnings_helper`.
Shahar Naveh