Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/wordpress-seo/src/conditionals/traits/admin-conditional-trait.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Yoast\WP\SEO\Conditionals\Traits;
+
+use Yoast\WP\SEO\Conditionals\Admin_Conditional;
+
+/**
+ * Trait for all integration that rely on the Admin-conditional
+ */
+trait Admin_Conditional_Trait {
+
+	/**
+	 * Returns an empty array, meaning no conditionals are required to load whatever uses this trait.
+	 *
+	 * @return array The conditionals that must be met to load this.
+	 */
+	public static function get_conditionals() {
+		return [ Admin_Conditional::class ];
+	}
+}