Fix potential NPE for salvage

Changelog.txt

@@ -2,7 +2,8 @@ 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
     Use minimum level of salvageable properly
-    Fix axes Critical Strikes default permissions
+    Fix Axes Critical Strikes default permissions ( new fixed permission: mcmmo.ability.axes.criticalstrikes )
+    Fix potential null pointer exception for salvage
 
 Version 2.1.114
     Fix some more locale usages, should aim to further prevent issues with oddball locales

src/main/java/com/gmail/nossr50/skills/salvage/SalvageManager.java

@@ -66,7 +66,7 @@ public class SalvageManager extends SkillManager {
 
         Salvageable salvageable = mcMMO.getSalvageableManager().getSalvageable(item.getType());
 
-        if (item.getItemMeta().isUnbreakable()) {
+        if (item.getItemMeta() != null && item.getItemMeta().isUnbreakable()) {
             NotificationManager.sendPlayerInformation(player, NotificationType.SUBSKILL_MESSAGE_FAILED, "Anvil.Unbreakable");
             return;
         }