This reverts commit 699505c8.

- Proof of Concept of Activity Feed Spoofing

This just never got added in for whatever reason.

This should make it easier to install the testing dependencies for new users.
Re: discussion on #65

Also add item to TODO list about setting logical and sane defaults.

The old tests are no longer needed on this branch.

[ci skip]

Update TODO with notes about hurds that will be faces in the future while
testing. Also update the README with accurate approximation and date.

Fix the last of that awful test pattern:

with expect.raises(github3.GitHubError):
    # multiple statements

I also need to come up with a way to test if user.update() is ever False.

Fix user tests. Also this should complete coverage for gists. Finally add an
alias for coverage_all (coverage_auth).

Also mention how to run the tests in an easy way.

Some unnecessary bits in there.

[ci skip]

Also, fixed a poor choice of words in the docs.

Finish documenting the majority of the project. Added some examples. Added some
events list functions. Just a few left.

Start Search.

I'm going to try to wrap up Events and Search by the end of this week. I'm also
going to start documenting the module as best as possible.

I also realized that with some of the functions that check a condition, e.g.,
is_watching() and is_following(), GitHub returns 404 in the instance you're
not watching/following the repository/user. This would throw an Error instead
of returning a boolean value. Instead of catching the error, the simplest
solution is to simply check the status code returned by the request.