implemented alt_folder and reorganized interface class code

inc/example.config.inc.php

@@ -0,0 +1,14 @@
+<?php 
+/**
+ * All settings that are uncommented are mandatory
+ * Others optional
+ */
+
+//Use a specific domain for links presented to the user
+//Format: https://your.domain.name/
+// MUST HAVE TAILING /
+define('URL','https://dev.pictshare.net/');
+
+//define('JPEG_COMPRESSION', 90);
+//define('FFMPEG_BINARY','');
+//define('ALT_FOLDER','/ftp/pictshare');