Allow to edit a custom URL

[nelsonjr]

One of the main uses of a short link is to be able to have it stable and reposition them if the underlying pages change. Please enable for editing the links.

[memory]

This is definitely something I'd like to implement, as well as an "admin" interface that lets you see and edit/delete all the links. No guarantees on when but for sure!

In the meantime, you can use the "recent urls" or "lookup" tab to find and delete out of date links and then re-create them with the proper destination. I realize this is clunky, but it's there.