Socket wrench - unwrench everything

Adds the socket wrench.

Large wrench, lets you unwrench pipes of any pressure at the downside of mixing their contents with the environment and taking a long time to do so.
Not so sure on the code for this, so I'm going to have to look over it again. The PR is mainly to show off the concept and get some feedback.

Behold, CODERART
![sockewrench](https://cloud.githubusercontent.com/assets/7339857/5236324/487a1fa2-782c-11e4-8993-a0fe9b03e4bc.png)