The Github gists api has a since parameter for the various gist searches. This adds that parameter to Github.get_gists(), NamedUser.get_gists() and Authenticator.get_gists(). Tests and replay data added/updated as needed.
I added a Time module in the tests directory, containing just a UTCtzinfo class, which I felt I needed for one of the tests (and would probably be useful in other since/until tests). Might not be the best name for the module but it seemed the least invasive thing to do.
This allows the Github class to retrieve repos by either their full name
or id. If the user passes in an id for a repo which doesn't exist or in which
they don't have sufficient permissions, an UnknownObjectException will
be raised. This addresses issue #245.
This is a minor thing. It’s a convention, not a rule (obviously)—but it’s also a best practice.
Many text editors look for this kind of comment as the first line—or second line, if there is a shebang (the `#!/usr/bin/env python`, or whatever else)—and make use of this to determine the file’s encoding.