parallax_togs and AO fix (#3693)

changes:

parallax_togs now actually gets read from the database instead of just written. Whoops.
AO on turfs adjacent to AO-deny turfs should no longer consider those turfs as AO neighbors.

code/modules/ambient_occlusion/ao_turf.dm

@@ -1,7 +1,7 @@
 #ifdef AO_USE_LIGHTING_OPACITY
-#define AO_TURF_CHECK(T) (!T.has_opaque_atom)
+#define AO_TURF_CHECK(T) (!T.has_opaque_atom || !T.permit_ao)
 #else
-#define AO_TURF_CHECK(T) (!T.density || !T.opacity)
+#define AO_TURF_CHECK(T) (!T.density || !T.opacity || !T.permit_ao)
 #endif
 
 /turf

code/modules/client/preference_setup/global/02_settings.dm

@@ -31,7 +31,9 @@
 				"toggles",
 				"asfx_togs",
 				"lastmotd" = "motd_hash",
-				"lastmemo" = "memo_hash"
+				"lastmemo" = "memo_hash",
+				"parallax_toggles" = "parallax_togs",
+				"parallax_speed"
 			), 
 			"args" = list("ckey")
 		)