V0.1.0: rebalanced Scroll of Psionic Blast

-Scroll is now more powerful and dangerous, more rare
-Only bosses can resist psionic blast now, Yog is immune

src/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Yog.java

@@ -370,7 +370,7 @@ public class Yog extends Mob {
 		static {
 			RESISTANCES.add( ToxicGas.class );
 			RESISTANCES.add( Death.class );
-			RESISTANCES.add( ScrollOfPsionicBlast.class );
+
 		}
 		
 		@Override
@@ -384,6 +384,7 @@ public class Yog extends Mob {
 			IMMUNITIES.add( Sleep.class );
 			IMMUNITIES.add( Terror.class );
 			IMMUNITIES.add( Burning.class );
+            IMMUNITIES.add( ScrollOfPsionicBlast.class );
 		}
 		
 		@Override