cherry pick commit

src/main/java/me/ryanhamshire/GriefPrevention/GriefPrevention.java

@@ -223,6 +223,7 @@ public class GriefPrevention extends JavaPlugin
 
     public boolean config_advanced_fixNegativeClaimblockAmounts;    //whether to attempt to fix negative claim block amounts (some addons cause/assume players can go into negative amounts)
     public int config_advanced_claim_expiration_check_rate;            //How often GP should check for expired claims, amount in seconds
+    public int config_advanced_offlineplayer_cache_days;            //Cache players who have logged in within the last x number of days
 
     //custom log settings
     public int config_logs_daysToKeep;