Allow players to construct railings of their very own, unfasten them from the flooring, deconstruct them including with RCDs, and all the good stuff from grilles, like electrification. Also solves the bug whereby you could climb over railings into solid tiles.
Fixes to boxstation doors, lavaland doors, RCD now allows users to rotate doors, Voice_of_god.dm var changes to stop confliction with next update. New wooden floor texture, New walls.