Add the generic meta viewport tag,
to support responsive themes.
Refs #328
<head>
<meta charset="utf-8">
<title><?php echo (true === empty($cfg['title']))? t('JI_WEB_RE') : $cfg['title']; ?></title>
+ <meta name="viewport" content="width=device-width, initial-scale=1">
<link id="shortcut_icon" rel="shortcut icon" href="<?php echo 'media/' . $cfg['style'] . '/favicon.ico'; ?>">
<link id="stylesheet" rel="stylesheet" href="<?php echo 'media/' . $cfg['style'] . '/style.css.php'; ?>" type="text/css" />
</head>