control point picker & list fixes

[Mike Runge]

Hi Pablo,
>
>I'll add a the "no autocreate, confirm with rmb" mode.
>
That's nice :-) Still very fast and intuitive and on demand working in
advanced mode for control freaks ;-)

>Actually I like the way with two windows, because one has to do less
>mouse movements to set a point, so I think it'll be faster to use.
>
You're probably right - it's even a very simple self introducing interface.
Very impressive, how useful hugin has become in that very short timeframe.
And it still looks very simple. I can't believe, that I can really USE it by
now - great :-)

best, mike