add scroll to top on vertical view change
add jasmine test for scroll to top
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.
Disables the previous/next arrows on pdf books on the first/last pages respectively
Upgrading to 1.4.8
Don't access kvs directly but use x_module and field_data mechanisms
Added setting to disable find courses links
Create new structure allows override of usage id and category
Renamed setting ENABLE_STUDENT_SELF_ENROLLMENT to COURSES_ARE_BROWSABLE
If setting COURSES_ARE_BROWSABLE is off return 404 on /courses
Removed hardcoded case for edge for /courses
location mapper maturation
richer exceptions, add_map return course_id, fix a bug, filter out unwanted kwargs in init
split get_item uses loc_mapper to decode old style Locations
Begin transactional with_version impl
Change create_item to optionally add the item to the head version and not create a new version.
Make Textbooks properly lazy
Adding Pillow jpeg and tiff system libs
Replace date lib w/ simpler tzAbbr