The post edit cookies makes no sense for bots, but it seems like the PR
for https://phabricator.wikimedia.org/T211233 is not going to be merged,
so we have to work around it.

Closes #221

Allow specifying `uselang` with `Page.revisions()` and
`Site.usercontributions()` to get localized parsed comments with
`prop=parsedcomment`.

Breaking change: Change the `Site.ask()` method to produce less nested
output. Basically, change `yield {title: answer}` to `yield answer`. The
title is included in the answer object after all.

Per #223

Closes #207

Use and recommend format from RFC 7231.
Give examples for custom User-Agent strings.

Closes #49

requests_oauthlib dependency name will only install from pip, requests-oauthlib works on both conda and pip

The `commands` line was accidentally(?) removed entirely in
57f716ed, so tox no longer actually ran any tests (only flake8).
This restores it, with the codestyle bit removed obviously. It
also fixes two lines where a tab was used instead of spaces.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

Per #223

We switched to pycodestyle then flake8 recently, but one stray
reference to pep8 was left in this doc file.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

Python 3.4 is EOL and support for it has been removed by
the requests package that we depend on.

Breaking change: Remove the `expandtemplates` and `diffto` parameters
from the `Site.revisions()` method as these were deprecated in MediaWiki
1.30 and removed in 1.32.

The rvexpandtemplates parameter has been removed, but we can use
action=expandtemplates instead.

somtimes -> sometimes
if do -> if you do

Storing the message in args[0] seems more Pythonic.

While OAuthAuthorizationError inherited LoginError, they did not really share the same interface as they didn't receive the same args.

- Make `AssertUserFailedError` inherit `MwClientError` rather than `LoginError`, since it doesn't have the same args.
- Move message into args[0], which is more standard Python.