This heavily refactors SpellView and adds infrastructure for receiving and reporting Errors raised by the web-dev iFrame. The web-dev error system, the Aether error system, and the Ace html-worker avoid disturbing each others' errors/annotations (though currently Aether+web-dev errors won't coexist), and they clear/update their own asynchronously.
Show web-dev iFrame errors as Ace annotations
Add functional error banners (with poor messages)
Improve error banners, don't allow duplicate Problems
Refactor setAnnotations override
Convert all constructor calls for Problems
Add comments, clean up
Clean up
Don't clear things unnecessarily
Clean up error message sending from iFrame
Add web-dev:error schema
Clarify error message attributes
Refactor displaying AetherProblems
Refactor displaying user problem banners
Refactor onWebDevError
Set ace styles on updating @problems
Clean up, fix off-by-1 error
Add comment
Show stale web-dev errors differently
Some web-dev errors are generated by "stale" code — code that's still running in the iFrame but doesn't have the player's recent changes.
This shows those errors differently than if they weren't "stale", and suggests they re-run their code.
Hook up web-dev event schema
Destroy ignored duplicate problems
Functionalize a bit of stuff
Fix ProblemAlertView never loading
Improve image gallery
Add How to Copy/Paste section
Fix modal close button
Add specs for image gallery
Fix up i18n
Fix render resetting scroll
Address code review feedback
Ensure afterRender is called
Partially fix ActivateLicensesModal.spec
[IN PROGRESS] Don't display deleted users
Move userID to classroom.deletedMembers on user delete (not retroactive)
Fix PDF links for course guides, remove old PDFs from repo
Remove deprecated SalesView
Remove underline for not-yet-linked student names
Only show class select when there's more than one
Ignore case when sorting student names
Use student.broadName instead of name for display and sorting
Fix initial load not showing progress after joining a course (hacky)
Fix text entry for enrollment number input
Fix enrollment statistics
Fix enrollment stats completely (and add back in per-class unenrolled count)
Add deletedMembers to classroom schema
More fixes to enrollment stats (don't count nonmember prepaids)
Don't use 0 as implicit false for openSpots
Update suggested number of credit to buy automatically
Fix classroom edit form ignoring cleared values
Add alert text when more users selected than enrollments available
Alert user when trying to assign course to unenrolled students
Alert user when assigning course to nobody
Add some tests for TeacherClassView bulk assign alerts
Fix TeacherClassView tests failing without demos
Use model/collection.fakeRequests :D
Remove unused comment
Fix handling of improperly sorted deleted users on clientside
Add test for moving deleted users to deletedMembers
Add script for moving all deleted classroom members to classroom.deletedMembers
Completely rewrite tallying up enrollment statistics
Fix some tests to not be dependent on logged-in user
Address PR comments
Fix default number of enrollments to buy
Fix i18n for not enough enrollments
Use custom error message for classroom name length
