Styling tweaks to reduce interference from Bootstrap.
Show link to store beside points as needed.
Tweaks for top nav, fixing spacing and duplicate IDs.
Fix to only drop non-current-unit exercise points when ds says so.
Fix to store view logic; avoid errors when purchased item not available.
Embed store item images as data URIs.
Show A/B testing condition description welcome message on homepage.
Don't apply facility-dependent A/B-testing conditions for teachers.
Added confirmation box for unit switching.
Merge pull request #2349 from jamalex/nalanda_rct3_finalization

Nalanda rct3 final tweaks
update student_testing_mixin to reflect fix for using the tests's total questions
update coachreport tests to reflect fixes on using a tests's total questions rather than the student's total attempts
display total_questions rather than total attempts in the coach report
Merge branch 'nalanda-rct3' into richard-test_shutoff
in tests: wait_for_element now waits for 5 seconds
lint student_progress.js
Merge pull request #8 from aronasorman/richard-test_shutoff

Richard test shutoff