add scroll to top on vertical view change
add jasmine test for scroll to top
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
Added missing test in StaticImageBookTest
Speed up Location creation returning existing locations where possible
Don't access kvs directly but use x_module and field_data mechanisms
Create new structure allows override of usage id and category
Perform auth checks in middleware

        Includes static server tests.
Put static server middleware after the middleware it requires
Remove cache workaround
Fixed tests name in staticbook
i18n fix
Fix order-dependency in tests
location mapper maturation
richer exceptions, add_map return course_id, fix a bug, filter out unwanted kwargs in init