Welders won't weld if they're off. Welders won't finish welding if Toggle Open was used in the process.
Now it only checks if closet is open at the moment of welding. Also removed useless message.
Locker should be open for cutting apart
Merge pull request #4414 from Lo6a4evskiy/2014-08-14-Welding-lockers

Fixes for welders and lockers