add base configuration for user

DependencyInjection/MissingBundleException.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace CL\Chill\MainBundle\DependencyInjection;
+
+use Exception;
+
+/**
+ * Description of MissingBundleException
+ *
+ * @author julien
+ */
+class MissingBundleException extends Exception {
+    
+    public function __construct($missingBundleName) {
+        $message = "The bundle $missingBundleName is missing.";
+        
+        parent::__construct($message, 500);
+    }
+    
+}