Add newline to README

- Proof of Concept of Activity Feed Spoofing
Revert "Add newline to README"

This reverts commit 699505c8829b5c43c9da4d46f469eeeeda6b1118.
Remove Downloads API

See deprecation discussion here:
https://github.com/github/developer.github.com/pull/389
Remove last lingering bits of Downloads
Document removal of Downloads API

[ci skip]
Pep8-ify some tests
Pep8 tests/test_events.py

s/assertTrue/assertEqual
Finish pep8-ing the tests
Update testing docs
Remove extraneous "do"
Update test dependencies
Merge branch 'testing-documentation' into develop
include branch field in update_file()
Merge pull request #173 from tpetr/update-file-branch

include branch field in update_file()
Add @esacteksab as a maintainer in AUTHORS.rst
Ack @tpetr's fix in HISTORY.rst
Start testing against multiple requests versions
Fix .travis.yml
Fixes #129

Add GitHub#rate_limit
Add rate_limit to public API