UI: Fix alien containment state

Manage Alien Containment state is good idea, but something has gone wrong.

Before (BaseScape):
![screen084x50](https://f.cloud.github.com/assets/3616568/1429629/4d5f2ec2-40b5-11e3-885d-b18798f00124.png)

After (BaseScape):
![screen061](https://f.cloud.github.com/assets/3616568/1429638/637910c4-40b5-11e3-9baf-42a3bd855b36.png)

After (BattleScape debriefing):
![screen060](https://f.cloud.github.com/assets/3616568/1429645/756d38a0-40b5-11e3-9420-5cbd3dfb1951.png)