"Revert page" button in Wiki

Proposal

It sometimes happen that when using the Wiki, it's necessary to revert a page to an earlier version. Since the wiki is just a Git repo, this works fine locally. But for "normal users", it's quite inconvenient to switch over to the command line just to reset a wiki page. And even for more advanced users, it requires some extra steps.

So I would like to propose a Revert changes button which appears on the page with the selected version: