"Cube" Unreal: Alpha 0.0.6a

Few smal but important fixes.

Fixed:
 >Deleting of empty rooms
 >Room wrong count and types of traps
 >Not working start "Warning message" menu
 >Nitrogen gas spreaders
 >Disappearing room when trap deactivates and player not inside

Please write all serious glitches like not working buttons or smth else.