I did this kind of on personal interest, since my emacs (using flake8)
marks every violation (meaning: line >79 chars) red, which is pretty
annoying.

I personally think 90 is a realistic guideline.

Since `next` is just there for compatability reasons, it is more
reusable be completely transparent, i.e. Passing every
[keyword]argument.

Now, we don't need to re-define it in the child class with a different
signature.

Since selecting the class obeys a static “namespace-id → class” mapping,
I select the class to be instantiated with a dict.

Refs #127

In this case, we can just use the bound method `self.__next__` instead
of calling the unbound method of `type(self)` and giving `self` as the
first parameter.

Fix #127

Refs #47

These have been done automatically by my editor (in the form of a post
save hook).

Remove python2.6 from
- Travis
- Tox
- PyPi tags
- documentation and readme

Also, Simplify an import clause.

This fixes #133

Looks like a buggy pip version could be the root cause, but
nevertheless, we shouldn't need to specify that we're depending on
requests explicitly when requests_oauthlib depends on it.

(https://stackoverflow.com/questions/27497470/setuptools-finds-wrong-package-during-install)

- Adds link to the user guide from readme
- Adds a new page to the user guide on "working with files"

Add OAuth and update docs

This follows on from #114 and addresses #87, providing an `end`
arg for all these generators, letting you get 'all pages between
Bar and Foo' or whatever it is you may need.

`redefined-builtin` and `too-many-arguments` are small smells,
and fixing them would break backward compat.

Also letting pylint know that we need the imports in __init__.py

* make basic_edit.py and upload.py python-3 compatible

Beaware argument requests from the constructor has been rename reqs

Add 'end' argument to PageList

this is sometimes useful; for instance I have a use case for
getting all pages in a given namespace that are alphabetically
between two specific points (because their names are in a
predictable format that involves alphabetically-sorted dates).
'end' is added as the last kwarg to avoid breaking any current
uses that rely on the kwarg ordering (thanks dan for pointing
that out).

I'll create a CREDITS.md file containing the info removed on this commit and more, so we have a comprehensive history document.

Use 'exec' in py3-compatible manner