installed, use the plastic sheeting therein. If not, we define it manually.
If the Technic mod is installed, don't define any recipes at all. Also removed
the extra "loaded!" messages and tweaked the default pipe alias to point to
something that is actually visible :-)
These devices can only be connected to horizontal pipes or to each other. Note
that only the device being placed and the pipes around it will adapt; if you
have a valve and pump next to one another and they won't connect, put a piece
of pipe at one end to show the auto-rotator which way they should go. Removal
of a pipe or device will not change the orientation of surrounding devices.
