Remove all include/require parts from classes and use autoload function

Any include or require call is removed and now we use only _spl_autoload
in any class external file include call.
There are three new _DIR vars: LIBDIR, SMARTYDIR, TABLEARRAYDIR that are
based on the __DIR__ and not current working directory.

www/libs/Class.Form.Generate.inc

@@ -259,7 +259,7 @@
 			$this->l = new l10n($lang);
 			// load config array
 			// get table array definitions for current page name
-			include(TABLE_ARRAYS."array_".$this->my_page_name.".inc");
+			_spl_autoload('array_'.$this->my_page_name.'.inc');
 
 			$config_array = ${$this->my_page_name};