diff --git a/composer.lock b/composer.lock
index 2870210..0b1aa3d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,9 @@
 {
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         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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@@ -49,7 +48,7 @@
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@@ -117,7 +116,7 @@
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@@ -192,7 +191,7 @@
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@@ -259,7 +258,7 @@
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@@ -340,7 +339,7 @@
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@@ -422,7 +421,7 @@
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@@ -659,7 +658,7 @@
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@@ -733,7 +732,7 @@
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@@ -854,7 +853,7 @@
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@@ -1146,7 +1145,7 @@
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@@ -1661,7 +1660,7 @@
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@@ -2419,7 +2370,7 @@
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@@ -2490,7 +2441,7 @@
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@@ -2549,7 +2500,7 @@
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@@ -2605,28 +2556,28 @@
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@@ -2637,13 +2588,14 @@
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@@ -2682,20 +2634,20 @@
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@@ -2882,20 +2844,20 @@
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@@ -4149,7 +4241,65 @@
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-            "time": "2018-09-21 13:07:52"
+            "time": "2018-09-21T13:07:52+00:00"
+        },
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+                "classmap": [
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+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
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+            "homepage": "https://symfony.com",
+            "keywords": [
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+                "portable",
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+            "time": "2019-08-06T08:03:45+00:00"
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@@ -4177,7 +4327,7 @@
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-            "time": "2018-12-10 12:11:44"
+            "time": "2018-12-10T12:11:44+00:00"
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@@ -4244,20 +4394,20 @@
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+            "time": "2018-11-29T14:48:32+00:00"
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@@ -4280,7 +4430,6 @@
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@@ -4321,7 +4470,7 @@
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-            "time": "2018-12-03 22:08:12"
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@@ -4402,7 +4551,7 @@
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-            "time": "2018-12-06 11:36:58"
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@@ -4488,7 +4637,7 @@
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             "homepage": "https://symfony.com",
-            "time": "2018-11-14 19:14:06"
+            "time": "2018-11-14T19:14:06+00:00"
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@@ -4568,7 +4717,7 @@
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             "homepage": "https://symfony.com",
-            "time": "2018-12-02 13:25:28"
+            "time": "2018-12-02T13:25:28+00:00"
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@@ -4618,7 +4767,7 @@
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             "homepage": "https://symfony.com",
-            "time": "2018-11-11 19:52:12"
+            "time": "2018-11-11T19:52:12+00:00"
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@@ -4680,7 +4829,7 @@
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             "description": "Symfony SwiftmailerBundle",
             "homepage": "http://symfony.com",
-            "time": "2018-10-27 16:17:38"
+            "time": "2018-10-27T16:17:38+00:00"
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@@ -4736,7 +4885,7 @@
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             "description": "Symfony Templating Component",
             "homepage": "https://symfony.com",
-            "time": "2018-11-20 16:22:05"
+            "time": "2018-11-20T16:22:05+00:00"
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@@ -4809,7 +4958,7 @@
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             "homepage": "https://symfony.com",
-            "time": "2018-12-06 10:45:32"
+            "time": "2018-12-06T10:45:32+00:00"
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@@ -4901,7 +5050,7 @@
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             "homepage": "https://symfony.com",
-            "time": "2018-12-06 10:57:56"
+            "time": "2018-12-06T10:57:56+00:00"
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@@ -4977,7 +5126,7 @@
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             "description": "Symfony TwigBundle",
             "homepage": "https://symfony.com",
-            "time": "2018-12-02 10:42:21"
+            "time": "2018-12-02T10:42:21+00:00"
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@@ -5066,7 +5215,7 @@
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             "description": "Symfony Validator Component",
             "homepage": "https://symfony.com",
-            "time": "2018-12-05 08:06:11"
+            "time": "2018-12-05T08:06:11+00:00"
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@@ -5141,20 +5290,20 @@
                 "debug",
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-            "time": "2018-11-25 12:50:42"
+            "time": "2018-11-25T12:50:42+00:00"
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-            "version": "v4.2.1",
+            "version": "v4.3.7",
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                 "url": "https://github.com/symfony/var-exporter.git",
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@@ -5166,7 +5315,7 @@
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@@ -5201,7 +5350,7 @@
                 "instantiate",
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-            "time": "2018-12-03 22:40:09"
+            "time": "2019-08-22T07:33:08+00:00"
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@@ -5267,7 +5416,7 @@
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             "description": "Symfony WebProfilerBundle",
             "homepage": "https://symfony.com",
-            "time": "2018-12-02 13:25:28"
+            "time": "2018-12-02T13:25:28+00:00"
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@@ -5326,7 +5475,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-11-11 19:52:12"
+            "time": "2018-11-11T19:52:12+00:00"
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@@ -5393,7 +5542,7 @@
             "keywords": [
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-            "time": "2018-12-16 10:36:48"
+            "time": "2018-12-16T10:36:48+00:00"
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@@ -5485,7 +5634,7 @@
                 "file uploads",
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-            "time": "2018-11-27 10:24:51"
+            "time": "2018-11-27T10:24:51+00:00"
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@@ -5538,7 +5687,7 @@
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-            "time": "2018-08-13 20:36:59"
+            "time": "2018-08-13T20:36:59+00:00"
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@@ -5592,7 +5741,7 @@
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-            "time": "2018-04-25 15:33:34"
+            "time": "2018-04-25T15:33:34+00:00"
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