Changes configuration values to lower camelcase

Also fixes some grammar mistakes related to the word reforge

src/main/java/net/knarcraft/blacksmith/command/BlackSmithConfigCommand.java

@@ -42,7 +42,7 @@ public class BlackSmithConfigCommand implements CommandExecutor {
         //Changing reforge-able items' default isn't recommended
         if (commandName.equalsIgnoreCase(NPCSetting.REFORGE_ABLE_ITEMS.getCommandName())) {
             displayErrorMessage(sender, "Changing reforge-able items globally will make every new " +
-                    "blacksmith unable to re-forge anything not in the list, unless it's changed for the " +
+                    "blacksmith unable to reforge anything not in the list, unless it's changed for the " +
                     "individual NPC. If you really want to change this, change it manually.");
             return false;
         }