perky/Minechem — pull request #133 by powercrystals (2013-03-03 20:30:10+00:00)
Title: Fix crash when non-Minechem machines are queried for Minechem triggers

Problem was originally observed by placing a TE conduit next to a wooden pipe with a gate on it. One of the three triggers was set up to handle this, the third wasn't, so I just added a brief check that it actually is the correct interface.