Change custom grouping to private fields

Author: Pallieter Verhpeven

CHANGELOG.md

@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+## [1.1.1] - 2017-10-30
+### Changed
+- change custom grouping fields to private for constancy
+
 ## [1.1.0] - 2017-09-21
 ### Added
 - add custom grouping support 
@@ -40,7 +44,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 - initial code
 
-[Unreleased]: https://github.com/CMTelecom/messaging-php/compare/1.1.0....HEAD
+[Unreleased]: https://github.com/CMTelecom/messaging-php/compare/1.1.1....HEAD
+[1.1.0]: https://github.com/CMTelecom/messaging-php/compare/1.1.0...1.1.1
 [1.1.0]: https://github.com/CMTelecom/messaging-php/compare/1.0.2...1.1.0
 [1.0.2]: https://github.com/CMTelecom/messaging-php/compare/1.0.1...1.0.2
 [1.0.1]: https://github.com/CMTelecom/messaging-php/compare/1.0.0...1.0.1

src/CM/Messaging/Message.php

@@ -63,23 +63,23 @@ class Message
      *
      * @var string
      */
-    protected $customGrouping1;
+    private $customGrouping1;
 
     /**
      * Applying custom grouping names to messages helps filter your messages. With up to three levels of custom grouping fields that can be set, subsets of messages can be further broken down.
      * The custom grouping name can be up to 100 characters of your choosing. It’s recommended to limit the number of unique custom groupings to 1000.
      *
      * @var string
      */
-    protected $customGrouping2;
+    private $customGrouping2;
 
     /**
      * Applying custom grouping names to messages helps filter your messages. With up to three levels of custom grouping fields that can be set, subsets of messages can be further broken down.
      * The custom grouping name can be up to 100 characters of your choosing. It’s recommended to limit the number of unique custom groupings to 1000.
      *
      * @var string
      */
-    protected $customGrouping3;
+    private $customGrouping3;
 
     /**
      * Used when sending multipart or concatenated SMS messages and always used together. Indicate the minimum and maximum of message parts that you allow the gateway to send for this message.