Replan copy of a dive

[Dirk Hohndel]

On Tue, Nov 04, 2014 at 12:30:02PM +0100, Robert Helling wrote:
> Hi,
> 
> to support planning several versions of a dive, add the possibility to create a new dive upon replan rather than override the old dive.
> 
> This took me several attempts to get it working, it was harder to get right than I originally thought. But I think this works now.

The code looked fine but I haven't played with it much.
I wonder if we should pop up a warning when we have a dive AFTER the
multiple alternative dives that only the first one is taken into account.
Or at least a tool tip or something.

Or maybe I'm overthinking this?

/D