#293 Add comments to help file, migrate header setting, write tests

src/main/java/fr/xephi/authme/settings/SettingsMigrationService.java

@@ -49,6 +49,7 @@ public class SettingsMigrationService extends PlainMigrationService {
             | migrateJoinLeaveMessages(resource)
             | migrateForceSpawnSettings(resource)
             | changeBooleanSettingToLogLevelProperty(resource)
+            | hasOldHelpHeaderProperty(resource)
             || hasDeprecatedProperties(resource);
     }
 
@@ -154,6 +155,15 @@ public class SettingsMigrationService extends PlainMigrationService {
         return false;
     }
 
+    private static boolean hasOldHelpHeaderProperty(PropertyResource resource) {
+        if (resource.contains("settings.helpHeader")) {
+            ConsoleLogger.warning("Help header setting is now in messages/help_xx.yml, "
+                + "please check the file to set it again");
+            return true;
+        }
+        return false;
+    }
+
     /**
      * Checks for an old property path and moves it to a new path if present.
      *

src/main/java/fr/xephi/authme/settings/properties/PluginSettings.java

@@ -9,10 +9,6 @@ import static com.github.authme.configme.properties.PropertyInitializer.newPrope
 
 public class PluginSettings implements SettingsHolder {
 
-    @Comment("The name shown in the help messages")
-    public static final Property<String> HELP_HEADER =
-        newProperty("settings.helpHeader", "AuthMeReloaded");
-
     @Comment({
         "Do you want to enable the session feature?",
         "If enabled, when a player authenticates successfully,",