Library
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+- Issue #1161031: fix readwrite select flag handling: POLLPRI now
+ results in a handle_expt_event call, not handle_read_event, and POLLERR
+ and POLLNVAL now call handle_close, not handle_expt_event. Also,
+ dispatcher now has an 'ignore_log_types' attribute for suppressing
+ log messages, which is set to 'warning' by default.
+
- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting