Thermals re-disguised, optical material scanners added to uplink

Thermals have been disguised as sunglasses, and come with flash protection.

Optical Material Scanners, disguised as mesons, are now in the uplink. For those who don't know, here's what they do:
![opticalmaterialscanners](https://cloud.githubusercontent.com/assets/6371075/3419198/88f43016-fe58-11e3-8bfb-40925e709d7e.png)
Due to the usefulness of this item, it costs 4 telecrystals. 

The changelog has been updated to reflect these changes.

Please leave feedback and suggestions, I am always open to constructive criticism!
What do you think they're worth?