Add:
- CA data: use actual total instead of sum(abs)
- CA data: make distinction between positive and negative rest values (LCA-ActivityBrowser#886)
- CA data: sort based on average of row instead of first column (LCA-ActivityBrowser#887)
- CA table: consistent dropping of empty (rest) rows (LCA-ActivityBrowser#1044)
- CA figure: add marker to show total score when both positive and negative results present (LCA-ActivityBrowser#647)

…howing on negative totals