Fix loading autoload.php in propel.php, when we use propel in externa…

…l projects

Fix the fix

Fix the fix 2

Fix loading autoload in propel.php

bin/propel.php

@@ -1,7 +1,7 @@
 <?php
 
 if (!class_exists('\Symfony\Component\Console\Application')) {
-    if (file_exists($file = __DIR__.'/../autoload.php')) {
+    if (file_exists($file = __DIR__.'/../../../autoload.php') || file_exists($file = __DIR__.'/../autoload.php')) {
         require_once $file;
     } elseif (file_exists($file = __DIR__.'/../autoload.php.dist')) {
         require_once $file;