Always/unconditionally select _next_ item in staging list after action

[npdbharris]

So with a console app, when dealing with a list like tig's staging list, I'd expect to be able to scroll to the first item I care about and then perform an action and have the next item selected. Items we care about tend to be clustered together in lists.

For instance if I have 10 files I don't care about followed by 10 files I want to stage/add, it's convenient to be able to scroll to item 11 and then hit u 10 times. Sadly, right now, when I press u the item above ends up being the next one focused, meaning that instead of hitting uuuuuuuuuu I end up doing something like uujujujuuujuj.

(Right now I end up scrolling to roughly the middle of the list of things I care about and then hitting u for a while until I need to reposition to the middle of the remaining items and repeat.)

Clearly this is just a usability thing, not a serious bug :)

Thanks,

Dave