v0.8.0: fixed the following bugs:

- various screen layout + orientation errors with power saver mode on
- DM-300s sprite exploding many times if it is stunned as it dies

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/sprites/DM300Sprite.java

@@ -89,7 +89,9 @@ public class DM300Sprite extends MobSprite {
 		Sample.INSTANCE.play( Assets.SND_ROCKS );
 		Camera.main.shake( 3, 0.7f );
 	}
-	
+
+	private boolean exploded = false;
+
 	@Override
 	public void onComplete( Animation anim ) {
 
@@ -103,7 +105,8 @@ public class DM300Sprite extends MobSprite {
 
 		super.onComplete( anim );
 		
-		if (anim == die) {
+		if (anim == die && !exploded) {
+			exploded = true;
 			Sample.INSTANCE.play(Assets.SND_BLAST);
 			emitter().burst( BlastParticle.FACTORY, 25 );
 		}