Track spectral arrows for combat

Changelog.txt

@@ -1,3 +1,7 @@
+Version 2.1.115
+    Fixed an issue with arrows causing exceptions with players not yet having data loaded
+    Spectral arrows are now tracked by mcMMO
+
 Version 2.1.114
     Fix some more locale usages, should aim to further prevent issues with oddball locales
     Fixed a bug where newer versions of MySQL did not like our rank command

src/main/java/com/gmail/nossr50/util/skills/CombatUtils.java

@@ -380,7 +380,7 @@ public final class CombatUtils {
                 }
             }
         }
-        else if (entityType == EntityType.ARROW) {
+        else if (entityType == EntityType.ARROW || entityType == EntityType.SPECTRAL_ARROW) {
             Arrow arrow = (Arrow) damager;
             ProjectileSource projectileSource = arrow.getShooter();