diff --git a/app/AppKernel.php b/app/AppKernel.php
index 1550814..e87f6cb 100644
--- a/app/AppKernel.php
+++ b/app/AppKernel.php
@@ -24,7 +24,6 @@ class AppKernel extends Kernel
             $bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
             $bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
             $bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();
-            $bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();
         }
 
         return $bundles;
diff --git a/composer.json b/composer.json
index 23d920c..522c540 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,6 @@
         "doctrine/annotations": "^1.3"
     },
     "require-dev": {
-        "sensio/generator-bundle": "^3.0",
         "symfony/phpunit-bridge": "^3.0",
         "phpunit/phpunit": "^5.7"
     },
diff --git a/composer.lock b/composer.lock
index e3d5100..bac1537 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "c1438425a97016ba74d9890c92bc03d4",
+    "content-hash": "48dbc523737d70c9ffd577f0b868cf5b",
     "packages": [
         {
             "name": "doctrine/annotations",
@@ -1639,6 +1639,64 @@
             ],
             "time": "2016-10-19T07:54:05+00:00"
         },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.10.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/e3d826245268269cd66f8326bd8bc066687b4a19",
+                "reference": "e3d826245268269cd66f8326bd8bc066687b4a19",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "email": "backendtea@gmail.com"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2018-08-06T14:22:27+00:00"
+        },
         {
             "name": "symfony/polyfill-intl-icu",
             "version": "dev-master",
@@ -1699,16 +1757,16 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "dev-master",
+            "version": "v1.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "e79d363049d1c2128f133a2667e4f4190904f7f4"
+                "reference": "c79c051f5b3a46be09205c73b80b346e4153e494"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/e79d363049d1c2128f133a2667e4f4190904f7f4",
-                "reference": "e79d363049d1c2128f133a2667e4f4190904f7f4",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/c79c051f5b3a46be09205c73b80b346e4153e494",
+                "reference": "c79c051f5b3a46be09205c73b80b346e4153e494",
                 "shasum": ""
             },
             "require": {
@@ -1720,7 +1778,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.3-dev"
+                    "dev-master": "1.9-dev"
                 }
             },
             "autoload": {
@@ -1754,7 +1812,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-11-14T01:06:16+00:00"
+            "time": "2018-09-21T13:07:52+00:00"
         },
         {
             "name": "symfony/polyfill-php56",
@@ -2151,31 +2209,36 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/twigphp/Twig.git",
-                "reference": "5c0aabb0eebd5db07f96a9d0f5bc0a5914b807f5"
+                "reference": "237c326c78c3bc0dda0639ebc9deab34539b7bf3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/twigphp/Twig/zipball/5c0aabb0eebd5db07f96a9d0f5bc0a5914b807f5",
-                "reference": "5c0aabb0eebd5db07f96a9d0f5bc0a5914b807f5",
+                "url": "https://api.github.com/repos/twigphp/Twig/zipball/237c326c78c3bc0dda0639ebc9deab34539b7bf3",
+                "reference": "237c326c78c3bc0dda0639ebc9deab34539b7bf3",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6|^7.0",
-                "symfony/polyfill-mbstring": "~1.0"
+                "php": "^7.0",
+                "symfony/polyfill-ctype": "^1.8",
+                "symfony/polyfill-mbstring": "^1.3"
             },
             "require-dev": {
-                "symfony/debug": "~2.7",
-                "symfony/phpunit-bridge": "~3.2@dev"
+                "psr/container": "^1.0",
+                "symfony/debug": "^2.7",
+                "symfony/phpunit-bridge": "^3.4.19|^4.1.8"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0-dev"
+                    "dev-master": "2.6-dev"
                 }
             },
             "autoload": {
                 "psr-0": {
                     "Twig_": "lib/"
+                },
+                "psr-4": {
+                    "Twig\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -2196,16 +2259,16 @@
                 },
                 {
                     "name": "Twig Team",
-                    "homepage": "http://twig.sensiolabs.org/contributors",
+                    "homepage": "https://twig.symfony.com/contributors",
                     "role": "Contributors"
                 }
             ],
             "description": "Twig, the flexible, fast, and secure template language for PHP",
-            "homepage": "http://twig.sensiolabs.org",
+            "homepage": "https://twig.symfony.com",
             "keywords": [
                 "templating"
             ],
-            "time": "2016-12-13T17:10:29+00:00"
+            "time": "2019-01-14T15:01:20+00:00"
         },
         {
             "name": "zendframework/zend-code",
@@ -3464,58 +3527,6 @@
             "homepage": "https://github.com/sebastianbergmann/version",
             "time": "2016-10-03T07:35:21+00:00"
         },
-        {
-            "name": "sensio/generator-bundle",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/sensiolabs/SensioGeneratorBundle.git",
-                "reference": "ec278c0bd530edf155c4a00900577b5cb80f559e"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/sensiolabs/SensioGeneratorBundle/zipball/ec278c0bd530edf155c4a00900577b5cb80f559e",
-                "reference": "ec278c0bd530edf155c4a00900577b5cb80f559e",
-                "shasum": ""
-            },
-            "require": {
-                "symfony/console": "~2.7|~3.0",
-                "symfony/framework-bundle": "~2.7|~3.0",
-                "symfony/process": "~2.7|~3.0",
-                "symfony/yaml": "~2.7|~3.0",
-                "twig/twig": "^1.28.2|^2.0"
-            },
-            "require-dev": {
-                "doctrine/orm": "~2.4",
-                "symfony/doctrine-bridge": "~2.7|~3.0"
-            },
-            "type": "symfony-bundle",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.1.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Sensio\\Bundle\\GeneratorBundle\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                }
-            ],
-            "description": "This bundle generates code for you",
-            "time": "2016-12-05T16:01:19+00:00"
-        },
         {
             "name": "symfony/phpunit-bridge",
             "version": "dev-master",