Windoor construction
- You now require airlock electronics to build windoors.
- You can now completely de-construct windoor assemblies with a welder.
- Windoors built by assemblies start open. This is because Cheridan's awesome construction sprite is in the 'open' position and it doesnt make sense for a crowbar to insta-close them.
git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3716 316c924e-a436-60f5-8080-3fe189b3f50e