Reviewed By: Itms Differential Revision: https://code.wildfiregames.com/D75 This was SVN commit r19156.
Refs #2913 This was SVN commit r16022.
Prevent building in non-visible areas. Fixes #594. This was SVN commit r8272.
Move Vision component to C++, for more efficient FoW processing. Disable FoW on demo maps. This was SVN commit r8160.