Apply most/all of LINDA's updates

This commit ports most, if not all of LINDA's updates on -tg-, and fixes a
few bugs that appear to be unique to paradise's codebase.

code/modules/assembly/bomb.dm

@@ -156,6 +156,7 @@
 		ground_zero.assume_air(air_contents)
 		ground_zero.hotspot_expose(1000, 125)
 
+	air_update_turf()
 	if(master)
 		del(master)
 	del(src)
@@ -165,4 +166,5 @@
 	var/turf/simulated/T = get_turf(src)
 	if(!T)
 		return
-	T.assume_air(removed)
+	T.assume_air(removed)
+	air_update_turf()