There's a few minor issues identified, but nothing we can't fix tomorrow.

Some of the known issues:
- in split view if you scroll back by mouse-wheel, you can't make the split disappear with PGDN
- in split view you can only scroll back by mouse-wheel if mouse pointer is in the 'split part' of the window
- PGUP scroll lock holds only for 'so long'
- in non-split view, selecting text in (some occasions) when you select all the way down, Scroll lock text stays on