Change automatic upgrading of command-costs to 'command' instead

Author: FrankHeijden

Essentials/src/main/java/com/earth2me/essentials/EssentialsUpgrade.java

@@ -269,7 +269,7 @@ private void convertCommandCosts(ConfigurationSection commandCosts, EssentialsCo
         for (Map.Entry<String, Object> entry : commandCosts.getValues(false).entrySet()) {
             LOGGER.info("Converting cost \"" + entry.getKey() + "\"");
 
-            config.set("filters." + entry.getKey() + ".pattern", entry.getKey());
+            config.set("filters." + entry.getKey() + ".command", entry.getKey());
             config.set("filters." + entry.getKey() + ".cost", entry.getValue());
         }
     }