This was a bit different from the other editing commands:
1) Only the current dive is edited not all selected dives.
Therefore, create a function that turns the current dive
into a one-element list.
2) The profile has to be replot. Here, likewise, create a
function to do that.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
c82f4487f9