Updated deps, changed from stack/stack to stack/builder

Author: simensen

README.md

@@ -38,7 +38,7 @@ as a stack middleware for a silex application:
         return $response;
     };
 
-    $stack = (new Stack\Stack())
+    $stack = (new Stack\Builder())
         ->push('Stack\Inline', $inlineMiddleware);
 
     $app = $stack->resolve($app);

composer.json

@@ -16,7 +16,7 @@
     },
     "require-dev": {
         "silex/silex": "~1.0@dev",
-        "stack/stack": "~1.0@dev",
+        "stack/builder": "~1.0@dev",
         "stack/callable-http-kernel": "~1.0@dev"
     },
     "autoload": {