Fixes LMS-1740 by activating the zooming diagram with the spacebar.
allow capa poroblems access to anonymous_student_id

fix system->capa_system in capa_problem change for anonid
add problem reset link to staff debug page
Set up page objects and base test file for staff view and staff debug.
Reworked UI for clarity, removed reload, and added Bok-Choy tests
Added jasmine tests and factored out javascript functions to new file
Reconnecting Token Generator for Annotation Tool
Additional logic to handle more course_image URL edge cases
This changes logic to allow more missed use cases of course_image to
work properly.  The cases are:

. XML courses with the course_image attribute set
. Mongo courses that are imported without a contentstore
. Mongo courses that have course_image set but don't have a content store

It also exports default images_static_course.jpg to
images/static_course.jpg to handle a use case where a course author
uploaded an image to the default location in studio without using the
studio interface for adding course images, they then export the course, and then
import it without a contentstore
Removed diacritic mention and explained token
Fix paver python prereq paths
Fixed Unit Test Issues
Reorganize information in CONTRIBUTING.rst, link to ReadTheDocs
factor out google analytics ids (LMS-2555)
Set the page in the correct place.
Fixed accessibility labels are not always created in problems.
STUD-1524
Revert "remove location of item from loc_mapper and cache"

This reverts commit d2b8b4f0dd43cfec379b2e12cc9f723ee0fab7d6.
Fixed advanced editor not working due to cheatsheet undefined.
STUD-1514
Merge pull request #3514 from edx/waheed/stud1514-toggle-cheatsheet-not-working

Fixed advanced editor not working due to cheatsheet undefined.
Reset the jenkins python virtualenv before test runs.
Fix comment formatting and Timezone explanation