added configurable automatic key generation.

laravel/core.php

@@ -64,6 +64,18 @@ if (isset($_SERVER['CLI']['ENV']))
 	$_SERVER['LARAVEL_ENV'] = $_SERVER['CLI']['ENV'];
 }
 
+/**
+ * Call the bootstrap Closure that was defined in the start.php
+ * file for the framework. This allows events and more to be
+ * registered extremely early in the life cycle.
+ */
+if (isset($bootstrap))
+{
+	call_user_func($bootstrap);
+
+	unset($bootstrap);
+}
+
 /**
  * Register all of the core class aliases. These aliases provide a
  * convenient way of working with the Laravel core classes without