add scroll to top on vertical view change
add jasmine test for scroll to top
formulaequationinput: add capital greek letters and hbar to calc preview
Remove unused XModuleDescriptor.get_sample_state method
Fix forums nav sidebar overlapping content

Previously, when the window was scrolled down past the top of the
discussion content pane, scrolling right would cause the sidebar to
appear above the background of the content pane but below the text.
This is only an issue with very small windows or with the text size
increased significantly, which is why this came up in an accessibility
audit. Now the sidebar is fixed to the left side of the page instead
of the left side of the viewport.
Replace references to .system
Add rb-inotify dependency
Make default parser keep comments
Fix import errors with unicode filenames
Add tests for imports with unicode filenames
Fix unicode errors on exceptions and logging
Use upside-down english for unicode text
Remove unnecessary encode
Bump diff-cover version
Cleaner tests
Utility functions for finding courses by id
i18n: submit buttons at dashboard
i18n: staff/student toggle link
i18n: problem submit buttons.
Improve accessibility for forums post toolbar

Mark toolbar and buttons with appropriate ARIA roles, add them to the
tab order, and make the titles more screen-reader friendly.