Canvas Student

- Bugfixes
- To Do widget items are now filtered by the Calendar filters.
- Widgets will show a Logged Out screen, when the user session expires.
- Widget updates from now on saving/editing/deleting calendar items.
- Added scroll to the synchronization settings screen.
- Showing 'No Internet Connection' dialog when clicking terms of use offline.
- Showing empty view if there are no quizzes for the course.
- "Show Grades" option is off by default from now.