Use a factory to Config and LocaleManager (see #298)

classes/ConfigFactory.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Alltube;
+
+use Symfony\Component\ErrorHandler\Debug;
+
+/**
+ * Class ConfigFactory
+ * @package Alltube
+ */
+class ConfigFactory
+{
+
+    /**
+     * @return Config
+     * @throws Exception\ConfigException
+     */
+    public static function create()
+    {
+        $configPath = __DIR__ . '/../config/config.yml';
+        if (is_file($configPath)) {
+            Config::setFile($configPath);
+        }
+
+        $config = Config::getInstance();
+        if ($config->uglyUrls) {
+            $container['router'] = new UglyRouter();
+        }
+        if ($config->debug) {
+            /*
+             We want to enable this as soon as possible,
+             in order to catch errors that are thrown
+             before the Slim error handler is ready.
+             */
+            Debug::enable();
+        }
+
+        return $config;
+    }
+}