Fixed "Setup tries to create database lychee_dbcheck #202"

php/modules/Database.php

@@ -73,11 +73,17 @@ class Database extends Module {
 
 		if ($database->connect_errno) return 'Warning: Connection failed!';
 
+		# Check if database exists
+		if (!$database->select_db($name)) {
+
+			# Database doesn't exist
 			# Check if user can create a database
 			$result = $database->query('CREATE DATABASE lychee_dbcheck');
 			if (!$result) return 'Warning: Creation failed!';
 			else $database->query('DROP DATABASE lychee_dbcheck');
 
+		}
+
 		# Save config.php
 $config = "<?php