add checking for a new instalation

index.php

@@ -1,11 +1,18 @@
 <?php
 
+include "bootstrap.php";
+	
+$app = new \Espo\Core\Application();
+
+$configFile = $app->getContainer()->get('config')->get('configPath');
+if (!file_exists($configFile)) {
+	header("Location: install/");
+	exit;
+}
+
 if (empty($_GET['entryPoint'])) {
 	include "main.html";
 } else {
-	include "bootstrap.php";
-	
-	$app = new \Espo\Core\Application();
 	$app->runEntryPoint($_GET['entryPoint']);
 }