Move to Symfony Flex

The structure changed completely.
Bundles are gone. Everything is flatten in the folder `src`.
I separated import & api controllers to avoid _pollution_ in the main controller folder.

tests/Controller/Api/WallabagRestControllerTest.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Tests\Controller\Api;
+
+use Craue\ConfigBundle\Util\Config;
+use App\Tests\WallabagApiTestCase;
+
+class WallabagRestControllerTest extends WallabagApiTestCase
+{
+    public function testGetVersion()
+    {
+        // create a new client instead of using $this->client to be sure client isn't authenticated
+        $client = static::createClient();
+        $client->request('GET', '/api/version');
+
+        $this->assertSame(200, $client->getResponse()->getStatusCode());
+
+        $content = json_decode($client->getResponse()->getContent(), true);
+
+        $this->assertSame($client->getContainer()->getParameter('wallabag.version'), $content);
+    }
+
+    public function testGetInfo()
+    {
+        // create a new client instead of using $this->client to be sure client isn't authenticated
+        $client = static::createClient();
+        $client->request('GET', '/api/info');
+
+        $this->assertSame(200, $client->getResponse()->getStatusCode());
+
+        $content = json_decode($client->getResponse()->getContent(), true);
+
+        $this->assertArrayHasKey('appname', $content);
+        $this->assertArrayHasKey('version', $content);
+        $this->assertArrayHasKey('allowed_registration', $content);
+
+        $this->assertSame('wallabag', $content['appname']);
+    }
+
+    public function testAllowedRegistration()
+    {
+        // create a new client instead of using $this->client to be sure client isn't authenticated
+        $client = static::createClient();
+
+        if (!$client->getContainer()->getParameter('fosuser_registration')) {
+            $this->markTestSkipped('fosuser_registration is not enabled.');
+
+            return;
+        }
+
+        $client->getContainer()->get(Config::class)->set('api_user_registration', 1);
+
+        $client->request('GET', '/api/info');
+
+        $content = json_decode($client->getResponse()->getContent(), true);
+
+        $this->assertTrue($content['allowed_registration']);
+
+        $client->getContainer()->get(Config::class)->set('api_user_registration', 0);
+
+        $client->request('GET', '/api/info');
+
+        $content = json_decode($client->getResponse()->getContent(), true);
+
+        $this->assertFalse($content['allowed_registration']);
+    }
+}