Fixes #404

_FATAL_ERROR_IGNORE is a tuple of exceptions which doesn't generate noisy loop.call_exception_handler() if connection cannot be established (see https://github.com/python/asyncio/blob/master/asyncio/selector_events.py#L633) for usage example.
ssl.CertificateError goes to this category -- it could be raised only at connecting stage.
The exception still is thrown to outer code but not logged unless debug mode is disabled.

Makes sense. Would you be able to write a unittest for this?

@asvetlov If you want this in 3.6.1 you need to add a unittest and resubmit this PR to python/cpython today.

@1st1 ok, so 3.6.1 is going out after today? btw would it also include the latest version of zlib as well because it has updated a to version above 1.2.8 this year to fix bugs and stuff.

@1st1 ok, so 3.6.1 is going out after today? btw would it also include the latest version of zlib as well because it has updated a to version above 1.2.8 this year to fix bugs and stuff.

Yes. Re zlib - not sure, please check on GH or bugs.python.org or python-dev mailing list.

hmm, from the looks on http://svn.python.org/projects/external/ I only see it having zlib v1.2.3 But I could have sworn python 3.6.0 was using 1.2.8. Will look at bugs.python.org or the python-dev irc channel.

@1st1 It looks like this repo was not marked as Read Only in it's settings to disable (I think it disables) the new issue / Pull Request buttons. Might want to do it explicitly in case someone does not read the readme in the redirect branch.

@asvetlov are you going to resubmit this PR to python/cpython ? I hope it's not abandoned.