Fix polarity of Bat.isAwake() and Bat.setAwake(boolean). Fixes BUKKIT-5624

src/main/java/org/bukkit/craftbukkit/entity/CraftBat.java

@@ -26,11 +26,11 @@ public class CraftBat extends CraftAmbient implements Bat {
 
     @Override
     public boolean isAwake() {
-        return getHandle().isStartled();
+        return !getHandle().isStartled();
     }
 
     @Override
     public void setAwake(boolean state) {
-        getHandle().setStartled(state);
+        getHandle().setStartled(!state);
     }
 }