NanoUI Gas Cooling/Heating System

* Created Nano UIs for the Gas Cooling System and Gas Heating System
* Standardized the reference structure for procs (they now use use full paths, instead of relative)
* Standardized the names of each machine ("gas cooling system" and "had heating system") for both the object and the UI title

![nanoui - gas cooling heating system](https://f.cloud.github.com/assets/2864209/1991010/f50158da-848f-11e3-9855-2e32baa19811.png)