Bring back Swipe to lock

[nephros]

@nthn

I’m sure there was a patch to restore swipe-to-lock, but I can’t find it in the web catalog anymore.

Edit: found it, it’s on OpenRepos: Patch: restore swipe to lock | OpenRepos.net — Community Repository System

Edit 2: looks like applying it no longer works in 5.2, but the source code is right there, so perhaps someone can make it work again.

Hm fixing that looks easy. I’ll try.