Add a way to kick players before a server stop

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

@@ -79,6 +79,7 @@ public final class Settings {
         enableProtection, enableAntiBot, recallEmail, useWelcomeMessage,
         broadcastWelcomeMessage, forceRegKick, forceRegLogin,
         checkVeryGames, delayJoinLeaveMessages, noTeleport, applyBlindEffect,
+        kickPlayersBeforeStoping,
         customAttributes, generateImage, isRemoveSpeedEnabled, preventOtherCase;
     public static String helpHeader, getNickRegex, getUnloggedinGroup, getMySQLHost,
         getMySQLPort, getMySQLUsername, getMySQLPassword, getMySQLDatabase,
@@ -300,6 +301,7 @@ public final class Settings {
         customAttributes = configFile.getBoolean("Hooks.customAttributes");
         generateImage = configFile.getBoolean("Email.generateImage", false);
         preventOtherCase = configFile.getBoolean("settings.preventOtherCase", false);
+        kickPlayersBeforeStoping = configFile.getBoolean("Security.stop.kickPlayersBeforeStoping", true);
 
         // Load the welcome message
         getWelcomeMessage();
@@ -727,6 +729,11 @@ public final class Settings {
             ConsoleLogger.showError("Remove Email.mailText from config, we now use the email.html file");
         }
 
+        if (!contains("Security.stop.kickPlayersBeforeStoping")) {
+        	set("Security.stop.kickPlayersBeforeStoping", true);
+        	changed = true;
+        }
+
         if (changes) {
             plugin.getLogger().warning("Merged new Config Options - I'm not an error, please don't report me");
             plugin.getLogger().warning("Please check your config.yml file for new configs!");