[BUGFIX] Fix warnings

Classes/Loader.php

@@ -283,12 +283,12 @@ class Loader {
 	/**
 	 * Loads the required javascript via the require.js
 	 *
-	 * @return void
+	 * @return array
 	 * @see \SGalinski\Tinymce4Rte\Form\Element\RichTextElement->loadRequireModulesForRTE
 	 */
 	public function loadJsViaRequireJS() {
 		if (self::$init) {
-			return;
+			return [];
 		}
 		self::$init = TRUE;
 		$scripts = array();