Use exit code > 0 to trigger error on Travis

Author: wouterj

bootstrap/bootstrap.php

@@ -12,12 +12,13 @@
 $vendorDir = realpath(__DIR__.'/../../..');
 
 if (!$loader = include $vendorDir.'/autoload.php') {
-    $nl = PHP_SAPI === 'cli' ? PHP_EOL : '<br />';
-    echo "$nl$nl";
-    die('You must set up the project dependencies.'.$nl.
-        'Run the following commands in '.dirname(__DIR__).':'.$nl.$nl.
+    $nl = 'cli' === substr(PHP_SAPI, 0, 3) ? PHP_EOL : '<br />';
+    echo $nl.$nl.
+        'You must set up the project dependencies.'.$nl.
+        'Run the following commands in '.dirname($vendorDir).':'.$nl.$nl.
         'curl -s http://getcomposer.org/installer | php'.$nl.
-        'php composer.phar install'.$nl);
+        'php composer.phar install'.$nl;
+    exit(1);
 }
 
 use Doctrine\Common\Annotations\AnnotationRegistry;