Add repsonse pagination to inline discussions
Temporarily disable CAPA problem "Check" button.

- update appropriate jasmine tests so that stubbed $postWithPrefix
respects a subset of jQuery promise API.
- add customization for checking state.
- display checking state while button is disabled.
- ensure checking state lasts for at least a second.
save dates on enter key press
STUD-1506
BLD-753: Add i18n for LTI.
Refactor speed control.
Add fixes.
Update docstrings.
Removed unused helpers.
Merge pull request #3216 from edx/zub/bugfix/std1506-savedate

save dates on enter key press
Fix video feature name so the test results roll up correctly
Implement editing from the Studio container page.

STUD-1306
Make tab name comparison case-insensitive
making chrome scroll up when showing the component menu on the Studio unit page
Refactor test logic for switching editor tabs
maintain scroll position after closing the component editing modal in Studio
small ui fixes in Studio - textbooks upload and loading font-size
removed edit-dialog and uploads css, changed component edit icon to pencil, small css fixes
Fix unit tests
fixed mixin sass
Changes based upon code review comments