Initial commit for rubberband extension
Cleanup
Don't select off-screen cells
Update rubberband

- use CSS instead of hardcoded background color
- remove selection after mouse click
Update for CodeMirror 4.6.0
Add scrolling to rubberband selection
Revert "Update for CodeMirror 4.6.0"

This reverts commit d77d979e2c4bfed616170fe3c6b13fa8cc446c10.
Remove unused variable
Only clear selection when clicking inside `#notebook`
Merge pull request #111 from juhasch/rubberband

Rubberband