Labor Camp

Adds a forced labor camp to security, where prisoners can be sent to work.  Security can use the prisoner management console to assign ore value requirements to prisoners, who will be released from the camp once they have met their quota.
Super-sneakily added a space helmet to the alien asteroid, which prisoners won't be able to reach without ingenuity.
![station](https://f.cloud.github.com/assets/4391822/1430982/a6eaa940-40c8-11e3-9867-8142ac3e826f.png)

![camp](https://f.cloud.github.com/assets/4391822/1430984/ad2f964e-40c8-11e3-95d7-0f1db3d93ad1.png)