Deploy 2.1.12
Fix duplicate item bug with the BoundedSet class.
fixed store_json_result config bug
Add changelog entry for store_json_result (issue 275).
Support wheel distributions, lint fixes.

For wheel distributions we must now also run:

    python setup.py bdist_wheel upload

Other changes:

 * Use `with` keyword to handle opening and closing files in setup.py.
 * Update update_checker version.
Parse and use get paramters in url in from_url.

Solves http://stackoverflow.com/questions/20890505/
praw-get-submission-works-inconsistently
Depend on update_checker >= 0.8.
Add support for changes to UserLists on reddit