Make Shareable Link page should copy the link to the clipboard

(User Story, Closed -> Fixed, Priority: High, Test Status: No automated tests yet , Reported By Justin du Coeur, )
UX, Invites
Summary: Currently, we just display the link -- the user has to cut-and-paste it themselves. It should automatically stuff it into the clipboard.
See this SO question for discussion of how to make this work. Possibly check out this library and see if it's doing anything different.
Ideally, this should go into sQuery as a general mechanism, but we'll see if that is feasible.