Allow equal rank levels for Salvage

Fixes #2270

src/main/java/com/gmail/nossr50/config/AdvancedConfig.java

@@ -442,8 +442,8 @@ public class AdvancedConfig extends AutoUpdateConfigLoader {
             if (tier != Salvage.Tier.EIGHT) {
                 Salvage.Tier nextTier = salvageTierList.get(salvageTierList.indexOf(tier) - 1);
 
-                if (getArcaneSalvageRankLevel(tier) >= getArcaneSalvageRankLevel(nextTier)) {
-                    reason.add("Skills.Salvage.ArcaneSalvage.Rank_Levels.Rank_" + tier.toNumerical() + " should be less than Skills.Salvage.ArcaneSalvage.Rank_Levels.Rank_" + nextTier.toNumerical() + "!");
+                if (getArcaneSalvageRankLevel(tier) > getArcaneSalvageRankLevel(nextTier)) {
+                    reason.add("Skills.Salvage.ArcaneSalvage.Rank_Levels.Rank_" + tier.toNumerical() + " should be less than or equal to Skills.Salvage.ArcaneSalvage.Rank_Levels.Rank_" + nextTier.toNumerical() + "!");
                 }
 
                 if (getArcaneSalvageExtractFullEnchantsChance(tier) > getArcaneSalvageExtractFullEnchantsChance(nextTier)) {