v0.8.0: various tweaks and adjustments, mainly for demon halls:

- added missing properties to rippers and spawners
- fixed rippers having long visibility range, increased their damage by 11%
- reduced the bleed damage from new ripper leap
- rippers now interrupt the hero when leaping
- adjusted candle positions in Yog's boss level
- added more text (including warnings) for demon spawners
- adjusted the positioning of Yog's sprite
- fixed cases where angled visuals would be incorrectly not visible
- removed redundant declarations from Ring of Elements, it now copies from AntiMagic

SPD-classes/src/main/java/com/watabou/noosa/Visual.java

@@ -272,6 +272,9 @@ public class Visual extends Gizmo {
 
 		if (c == null || !visible) return false;
 
+		//FIXME, the below calculations ignore angle, so assume visible if angle != 0
+		if (angle != 0) return true;
+
 		//x coord
 		if (x > c.scroll.x + c.width)
 			return false;