enhancement: sanity check on delete link button

[ghramsey]

Can we get a prompt "are you sure?" before links are deleted? Hopefully not too hard to add.
Nothing critical or emergency, but maybe going forward. I actually like the way you have the entities window
setup to to use check boxes for deletes. I realize with links it's a little different though.

[ghramsey]

Thank you! You seem to had added this tonight. Worked like a charm and keeps from making silly mistakes.