Update Composer, update everything

vendor/stack/builder/src/Stack/StackedHttpKernel.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Stack;
+
+use Symfony\Component\HttpKernel\HttpKernelInterface;
+use Symfony\Component\HttpKernel\TerminableInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class StackedHttpKernel implements HttpKernelInterface, TerminableInterface
+{
+    private $app;
+    private $middlewares = array();
+
+    public function __construct(HttpKernelInterface $app, array $middlewares)
+    {
+        $this->app = $app;
+        $this->middlewares = $middlewares;
+    }
+
+    public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
+    {
+        return $this->app->handle($request, $type, $catch);
+    }
+
+    public function terminate(Request $request, Response $response)
+    {
+        $prevKernel = null;
+        foreach ($this->middlewares as $kernel) {
+            // if prev kernel was terminable we can assume this middleware has already been called
+            if (!$prevKernel instanceof TerminableInterface && $kernel instanceof TerminableInterface) {
+                $kernel->terminate($request, $response);
+            }
+            $prevKernel = $kernel;
+        }
+    }
+}