Engine: * Keep sudden death from starting while using a multi shot weapon (will start after the last shot now) - This fixes issue #1 * Keep the engine from crashing when trying to place a girder at the bottom map border (right above the water line) - This fixes issue #16

[patterns]
**.h = native
**.c = native
**.cpp = native
**.lua = native
**.txt = native
**.pas = native
**.inc = native