* install: better error message on database failed connect

* changed <p> tag to <div> in notification messages

install/steps/6-admin.php

@@ -5,6 +5,10 @@ require(BASE . 'install/includes/config.php');
 if(!$error) {
 	require(BASE . 'install/includes/database.php');
 	
+	if(isset($database_error)) { // we failed connect to the database
+		error($database_error);
+	}
+
 	echo $twig->render('install.admin.html.twig', array(
 		'locale' => $locale,
 		'session' => $_SESSION,