CleverRaven/Cataclysm-DDA — pull request #4940 by KA101 (2013-12-07 21:32:49+00:00)
Title: High-level Electronics recipe-locking

From the NX17 and laser cells through the teleporter: if it's Electronic
and you auto-learned it before, you probably don't now. Sorry.

Recipe binder spawns in Teleporter rooms, pretty generous rating (10).
Robots can be worked out from Fun & Profit too. but that's tougher than
from the lab binder.