add scroll to top on vertical view change
add jasmine test for scroll to top
Improve accessibility for forums post toolbar

Mark toolbar and buttons with appropriate ARIA roles, add them to the
tab order, and make the titles more screen-reader friendly.
Consider redirect code as succcesful
Link to How To Contribute wiki page

Created a CONTRIBUTING.rst which GitHub will pick up and included a
link to the How To Contribute wiki page there. Also added the same link
to the README in the "How To Contribute" section.
Moved to a more comprehensive contributing doc.

Based on the How To Contribute wiki page (and switched to markdown so
it's a simple copy-paste).
Link to wiki with absolute URLs
Added linebreaks.
Properly handle error responses
Prompt before leaving page
Catch IOError and ignore if OS X companion file
Remove useless try-except clause
don't remove comments from xml module
Fix import errors with unicode filenames
Add tests for imports with unicode filenames
Fix unicode errors on exceptions and logging
Use upside-down english for unicode text
Remove unnecessary encode
Bump diff-cover version
Cleaner tests