As title says…
Also makes code a bit better “confined” I think (all snapping cooking is done inside the single snapSequenceBounds).
Now, this is still a bit hackish, especially how we 'disable' increment snapping when constrained, think the best thing would be to create a real seq snapping mode (would also allow to chose between snap to strips of incremental snap!).
Antony, not sure about what we want here…