diff --git a/composer.lock b/composer.lock
index c5f17e4..56c0be3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,9 @@
 {
     "_readme": [
         "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",
         "This file is @generated automatically"
     ],
-    "hash": "9ddef91c8a61f986717b4dcad2a256d8",
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@@ -64,7 +63,7 @@
                 "ssl",
                 "tls"
             ],
-            "time": "2017-03-06 11:59:08"
+            "time": "2017-03-06T11:59:08+00:00"
         },
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@@ -132,7 +131,7 @@
                 "docblock",
                 "parser"
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-            "time": "2017-02-24 16:22:25"
+            "time": "2017-02-24T16:22:25+00:00"
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@@ -202,7 +201,7 @@
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-            "time": "2016-10-29 11:16:17"
+            "time": "2016-10-29T11:16:17+00:00"
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@@ -269,7 +268,7 @@
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                 "iterator"
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-            "time": "2017-01-03 10:49:41"
+            "time": "2017-01-03T10:49:41+00:00"
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@@ -342,7 +341,7 @@
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-            "time": "2017-01-13 14:02:13"
+            "time": "2017-01-13T14:02:13+00:00"
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@@ -413,7 +412,7 @@
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-            "time": "2017-02-08 12:53:47"
+            "time": "2017-02-08T12:53:47+00:00"
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@@ -494,7 +493,7 @@
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-            "time": "2017-05-18 08:15:18"
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@@ -582,7 +581,7 @@
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+            "time": "2016-01-26T17:28:51+00:00"
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@@ -649,7 +648,7 @@
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+            "time": "2015-11-06T14:35:42+00:00"
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@@ -703,7 +702,7 @@
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-            "time": "2015-06-14 21:17:01"
+            "time": "2015-06-14T21:17:01+00:00"
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@@ -757,7 +756,7 @@
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                 "parser"
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-            "time": "2014-09-09 13:34:57"
+            "time": "2014-09-09T13:34:57+00:00"
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@@ -833,7 +832,7 @@
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                 "orm"
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-            "time": "2016-12-18 15:42:34"
+            "time": "2016-12-18T15:42:34+00:00"
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@@ -887,7 +886,7 @@
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-            "time": "2016-10-17 18:31:11"
+            "time": "2016-10-17T18:31:11+00:00"
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@@ -964,7 +963,7 @@
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                 "User management"
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-            "time": "2017-05-31 11:50:14"
+            "time": "2017-05-31T11:50:14+00:00"
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@@ -1029,7 +1028,7 @@
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                 "web service"
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-            "time": "2017-06-22 18:50:49"
+            "time": "2017-06-22T18:50:49+00:00"
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@@ -1080,7 +1079,7 @@
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                 "promise"
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-            "time": "2016-12-20 10:07:11"
+            "time": "2016-12-20T10:07:11+00:00"
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@@ -1145,7 +1144,7 @@
                 "uri",
                 "url"
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-            "time": "2017-03-20 17:10:46"
+            "time": "2017-03-20T17:10:46+00:00"
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@@ -1196,7 +1195,7 @@
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                 "parameters management"
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+            "time": "2015-11-10T17:04:01+00:00"
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             "name": "jdorn/sql-formatter",
@@ -1246,7 +1245,7 @@
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                 "sql"
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-            "time": "2014-01-12 16:20:24"
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@@ -1324,7 +1323,7 @@
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                 "validation"
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@@ -1395,7 +1394,7 @@
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@@ -1457,7 +1456,7 @@
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@@ -1535,7 +1534,7 @@
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@@ -1583,7 +1582,7 @@
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                 "random"
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-            "time": "2017-03-13 16:27:32"
+            "time": "2017-03-13T16:27:32+00:00"
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@@ -1651,7 +1650,7 @@
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@@ -1697,7 +1696,7 @@
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+            "time": "2016-08-06T20:24:11+00:00"
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@@ -1746,7 +1745,7 @@
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-            "time": "2017-02-14 16:28:37"
+            "time": "2017-02-14T16:28:37+00:00"
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@@ -1796,7 +1795,7 @@
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                 "response"
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+            "time": "2016-08-06T14:39:51+00:00"
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@@ -1845,7 +1844,7 @@
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@@ -1892,7 +1891,7 @@
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@@ -1940,7 +1939,7 @@
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@@ -1993,7 +1992,7 @@
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@@ -2045,7 +2044,7 @@
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@@ -2115,7 +2114,7 @@
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@@ -2160,7 +2159,7 @@
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             "description": "A security checker for your composer.lock",
-            "time": "2017-03-31 14:50:32"
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@@ -2214,7 +2213,7 @@
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@@ -2274,7 +2273,7 @@
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@@ -2327,7 +2326,86 @@
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-            "time": "2017-06-09 08:25:21"
+            "time": "2017-06-09T08:25:21+00:00"
+        },
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+                "url": "https://github.com/symfony/polyfill-ctype.git",
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+                "ext-ctype": "For best performance"
+            },
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+            "extra": {
+                "branch-alias": {
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+                },
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+                    "url": "https://github.com/symfony/polyfill"
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+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.19.0"
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+            "funding": [
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+                    "type": "custom"
+                },
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+                    "type": "github"
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+                }
+            ],
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@@ -2385,20 +2463,20 @@
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+            "time": "2017-06-09T08:25:21+00:00"
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+            "version": "v1.19.0",
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                 "url": "https://github.com/symfony/polyfill-mbstring.git",
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-                "reference": "f29dca382a6485c3cbe6379f0c61230167681937",
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@@ -2410,16 +2488,20 @@
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+                    "dev-main": "1.19-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
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-                    "Symfony\\Polyfill\\Mbstring\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                }
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@@ -2444,7 +2526,24 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-06-09 14:24:12"
+            "support": {
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.19.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
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@@ -2500,7 +2599,7 @@
                 "portable",
                 "shim"
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-            "time": "2017-06-09 08:25:21"
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@@ -2559,7 +2658,7 @@
                 "portable",
                 "shim"
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-            "time": "2017-06-09 14:24:12"
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@@ -2611,7 +2710,7 @@
                 "polyfill",
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-            "time": "2017-06-09 08:25:21"
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@@ -2670,7 +2769,7 @@
             ],
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             "homepage": "http://symfony.com",
-            "time": "2017-05-22 04:58:24"
+            "time": "2017-05-22T04:58:24+00:00"
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@@ -2822,7 +2921,7 @@
             "keywords": [
                 "framework"
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@@ -2878,35 +2977,35 @@
                 "i18n",
                 "text"
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-            "time": "2017-06-08 18:19:53"
+            "time": "2017-06-08T18:19:53+00:00"
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-            "version": "v2.4.3",
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-                "reference": "eab7c3288ae6603d7d6f92b531626af2b162d1f2",
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+                "reference": "18772e0190734944277ee97a02a9a6c6555fcd94",
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                 "php": "^7.0",
-                "symfony/polyfill-mbstring": "~1.0"
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             "require-dev": {
                 "psr/container": "^1.0",
-                "symfony/debug": "~2.7",
-                "symfony/phpunit-bridge": "~3.3@dev"
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@@ -2928,23 +3027,26 @@
                     "homepage": "http://fabien.potencier.org",
                     "role": "Lead Developer"
                 },
+                {
+                    "name": "Twig Team",
+                    "role": "Contributors"
+                },
                 {
                     "name": "Armin Ronacher",
                     "email": "armin.ronacher@active-4.com",
                     "role": "Project Founder"
-                },
-                {
-                    "name": "Twig Team",
-                    "homepage": "http://twig.sensiolabs.org/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": "2017-06-07 18:47:58"
+            "support": {
+                "issues": "https://github.com/twigphp/Twig/issues",
+                "source": "https://github.com/twigphp/Twig/tree/2.x"
+            },
+            "time": "2020-02-11T15:31:23+00:00"
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     ],
     "packages-dev": [
@@ -3000,7 +3102,7 @@
                 }
             ],
             "description": "This bundle generates code for you",
-            "time": "2017-07-12 17:28:00"
+            "time": "2017-07-12T17:28:00+00:00"
         },
         {
             "name": "symfony/phpunit-bridge",
@@ -3062,7 +3164,7 @@
             ],
             "description": "Symfony PHPUnit Bridge",
             "homepage": "https://symfony.com",
-            "time": "2017-06-12 13:35:45"
+            "time": "2017-06-12T13:35:45+00:00"
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     ],
     "aliases": [],
@@ -3073,5 +3175,6 @@
     "platform": {
         "php": ">=5.5.9"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }