Construction site outpost mapfixes

See: http://80.244.78.90/phpBB3/viewtopic.php?f=13&t=2171

The engineering shuttle is not properly contained and air is being removed out into space:

![1-breathing](https://cloud.githubusercontent.com/assets/147366/3782264/a5202274-199f-11e4-8dda-b4a4f77a3def.png)

To remedy this two additional reinforced glasses are added to seal the breach:

![2-reinforcedwindows](https://cloud.githubusercontent.com/assets/147366/3782282/db9bbd9a-199f-11e4-8e9d-8fb95d1e8d1e.png)

The stacks of glasses available on the engineering outpost have their amounts at the default of one, while metal and wood are at 50 and 30, respectively. The glass amount is now at 50 per stack:

![3-amount](https://cloud.githubusercontent.com/assets/147366/3782315/3a4f0db0-19a0-11e4-8325-91f47b47dd41.png)

I tested the changes and did not encounter any issues.