fix unicode comparisons, fix 404 access exception, fix initial link handling, fix forum access modification permissions

add csv & enrollment & access api tests, disallow instructors from un-instructoring themselves, rename mode to action for access

make year_of_birth graph bigger, add display names to analytics, remove extra context, fix typos & formatting

- rename list copy
- add beta list
- fix forum and admin API's to be more similar
- add auto-enroll checkbox
- fix list reload
- remove extra js logging
- add course errors visibility toggle
- add underscore.js check