Merge branch 'feature/init' into 'master'

Feature/init

See merge request !10

.gitlab-ci.yml

 variables:
   DISABLE_FUNCTIONAL: 1
   DISABLE_ACCEPTANCE: 1
+  IS_LIBRARY: 1
 
 include: 'https://gitlab.com/wpdesk/gitlab-ci/raw/master/gitlab-ci-1.2.yml'
 

src/notice-init.php

-<?php
-
-require_once './WPDesk/Notice/AjaxHandler.php';
-require_once './WPDesk/Notice/Notice.php';
-require_once './WPDesk/Notice/PermanentDismissibleNotice.php';
-require_once './WPDesk/Notice/Factory.php';
-require_once './WPDesk/Notice/functions.php';

wp-notice-init.php

+<?php
+
+require_once './vendor/autoload.php';
+
+if (!class_exists('\WPDesk\Notice\AjaxHandler')) {
+    require_once './WPDesk/Notice/AjaxHandler.php';
+}
+if (!class_exists('\WPDesk\Notice\Notice')) {
+    require_once './WPDesk/Notice/Notice.php';
+}
+if (!class_exists('\WPDesk\Notice\PermanentDismissibleNotice')) {
+    require_once './WPDesk/Notice/PermanentDismissibleNotice.php';
+}
+if (!class_exists('\WPDesk\Notice\Factory')) {
+    require_once './WPDesk/Notice/Factory.php';
+}
+require_once './WPDesk/notice-functions.php';
+