diff --git a/composer.lock b/composer.lock
index a7a754c..7d574a2 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": "b64b67aafc74aa8832d059434923b483",
     "content-hash": "ecea0d12c5278656576371d4802a67fc",
     "packages": [
         {
@@ -73,7 +72,7 @@
                 "docblock",
                 "parser"
             ],
-            "time": "2015-08-31 12:32:49"
+            "time": "2015-08-31T12:32:49+00:00"
         },
         {
             "name": "doctrine/cache",
@@ -143,7 +142,7 @@
                 "cache",
                 "caching"
             ],
-            "time": "2015-12-31 16:37:02"
+            "time": "2015-12-31T16:37:02+00:00"
         },
         {
             "name": "doctrine/collections",
@@ -209,7 +208,7 @@
                 "collections",
                 "iterator"
             ],
-            "time": "2015-04-14 22:21:58"
+            "time": "2015-04-14T22:21:58+00:00"
         },
         {
             "name": "doctrine/common",
@@ -282,7 +281,7 @@
                 "persistence",
                 "spl"
             ],
-            "time": "2015-12-25 13:18:31"
+            "time": "2015-12-25T13:18:31+00:00"
         },
         {
             "name": "doctrine/dbal",
@@ -353,7 +352,7 @@
                 "persistence",
                 "queryobject"
             ],
-            "time": "2016-01-05 22:11:12"
+            "time": "2016-01-05T22:11:12+00:00"
         },
         {
             "name": "doctrine/doctrine-bundle",
@@ -432,7 +431,7 @@
                 "orm",
                 "persistence"
             ],
-            "time": "2016-01-10 17:21:44"
+            "time": "2016-01-10T17:21:44+00:00"
         },
         {
             "name": "doctrine/doctrine-cache-bundle",
@@ -520,7 +519,7 @@
                 "cache",
                 "caching"
             ],
-            "time": "2016-01-26 17:28:51"
+            "time": "2016-01-26T17:28:51+00:00"
         },
         {
             "name": "doctrine/inflector",
@@ -587,7 +586,7 @@
                 "singularize",
                 "string"
             ],
-            "time": "2015-11-06 14:35:42"
+            "time": "2015-11-06T14:35:42+00:00"
         },
         {
             "name": "doctrine/instantiator",
@@ -641,7 +640,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14 21:17:01"
+            "time": "2015-06-14T21:17:01+00:00"
         },
         {
             "name": "doctrine/lexer",
@@ -695,7 +694,7 @@
                 "lexer",
                 "parser"
             ],
-            "time": "2014-09-09 13:34:57"
+            "time": "2014-09-09T13:34:57+00:00"
         },
         {
             "name": "doctrine/orm",
@@ -771,7 +770,7 @@
                 "database",
                 "orm"
             ],
-            "time": "2016-01-05 21:34:58"
+            "time": "2016-01-05T21:34:58+00:00"
         },
         {
             "name": "incenteev/composer-parameter-handler",
@@ -822,7 +821,7 @@
             "keywords": [
                 "parameters management"
             ],
-            "time": "2015-11-10 17:04:01"
+            "time": "2015-11-10T17:04:01+00:00"
         },
         {
             "name": "ircmaxell/password-compat",
@@ -864,7 +863,7 @@
                 "hashing",
                 "password"
             ],
-            "time": "2014-11-20 16:49:30"
+            "time": "2014-11-20T16:49:30+00:00"
         },
         {
             "name": "jdorn/sql-formatter",
@@ -914,7 +913,7 @@
                 "highlight",
                 "sql"
             ],
-            "time": "2014-01-12 16:20:24"
+            "time": "2014-01-12T16:20:24+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -992,7 +991,7 @@
                 "logging",
                 "psr-3"
             ],
-            "time": "2016-04-12 18:29:35"
+            "time": "2016-04-12T18:29:35+00:00"
         },
         {
             "name": "paragonie/random_compat",
@@ -1040,7 +1039,7 @@
                 "pseudorandom",
                 "random"
             ],
-            "time": "2016-04-03 06:00:07"
+            "time": "2016-04-03T06:00:07+00:00"
         },
         {
             "name": "psr/log",
@@ -1078,7 +1077,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2012-12-21 11:40:51"
+            "time": "2012-12-21T11:40:51+00:00"
         },
         {
             "name": "sensio/distribution-bundle",
@@ -1130,7 +1129,7 @@
                 "configuration",
                 "distribution"
             ],
-            "time": "2016-04-25 20:50:31"
+            "time": "2016-04-25T20:50:31+00:00"
         },
         {
             "name": "sensio/framework-extra-bundle",
@@ -1192,7 +1191,7 @@
                 "annotations",
                 "controllers"
             ],
-            "time": "2016-03-25 17:08:27"
+            "time": "2016-03-25T17:08:27+00:00"
         },
         {
             "name": "sensiolabs/security-checker",
@@ -1236,7 +1235,7 @@
                 }
             ],
             "description": "A security checker for your composer.lock",
-            "time": "2015-11-07 08:07:40"
+            "time": "2015-11-07T08:07:40+00:00"
         },
         {
             "name": "swiftmailer/swiftmailer",
@@ -1289,7 +1288,7 @@
                 "mail",
                 "mailer"
             ],
-            "time": "2016-05-01 08:45:47"
+            "time": "2016-05-01T08:45:47+00:00"
         },
         {
             "name": "symfony/monolog-bundle",
@@ -1349,7 +1348,7 @@
                 "log",
                 "logging"
             ],
-            "time": "2016-04-13 16:21:01"
+            "time": "2016-04-13T16:21:01+00:00"
         },
         {
             "name": "symfony/polyfill-apcu",
@@ -1402,7 +1401,86 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
+        },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.19.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/aed596913b70fae57be53d86faa2e9ef85a2297b",
+                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.19-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "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"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-23T09:01:57+00:00"
         },
         {
             "name": "symfony/polyfill-intl-icu",
@@ -1460,20 +1538,20 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.2.0",
+            "version": "v1.19.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "dff51f72b0706335131b00a7f49606168c582594"
+                "reference": "b5f7b932ee6fa802fc792eabd77c4c88084517ce"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/dff51f72b0706335131b00a7f49606168c582594",
-                "reference": "dff51f72b0706335131b00a7f49606168c582594",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/b5f7b932ee6fa802fc792eabd77c4c88084517ce",
+                "reference": "b5f7b932ee6fa802fc792eabd77c4c88084517ce",
                 "shasum": ""
             },
             "require": {
@@ -1485,16 +1563,20 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2-dev"
+                    "dev-main": "1.19-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Mbstring\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -1519,7 +1601,24 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "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"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-23T09:01:57+00:00"
         },
         {
             "name": "symfony/polyfill-php54",
@@ -1577,7 +1676,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-php55",
@@ -1633,7 +1732,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-php56",
@@ -1689,7 +1788,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-php70",
@@ -1748,7 +1847,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-util",
@@ -1800,7 +1899,7 @@
                 "polyfill",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/security-acl",
@@ -1861,7 +1960,7 @@
             ],
             "description": "Symfony Security Component - ACL (Access Control List)",
             "homepage": "https://symfony.com",
-            "time": "2015-12-28 09:39:46"
+            "time": "2015-12-28T09:39:46+00:00"
         },
         {
             "name": "symfony/swiftmailer-bundle",
@@ -1918,7 +2017,7 @@
             ],
             "description": "Symfony SwiftmailerBundle",
             "homepage": "http://symfony.com",
-            "time": "2016-01-15 16:41:20"
+            "time": "2016-01-15T16:41:20+00:00"
         },
         {
             "name": "symfony/symfony",
@@ -2052,38 +2151,43 @@
             "keywords": [
                 "framework"
             ],
-            "time": "2016-05-09 21:45:54"
+            "time": "2016-05-09T21:45:54+00:00"
         },
         {
             "name": "twig/twig",
-            "version": "v1.24.1",
+            "version": "v2.12.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/twigphp/Twig.git",
-                "reference": "3566d311a92aae4deec6e48682dc5a4528c4a512"
+                "reference": "18772e0190734944277ee97a02a9a6c6555fcd94"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/twigphp/Twig/zipball/3566d311a92aae4deec6e48682dc5a4528c4a512",
-                "reference": "3566d311a92aae4deec6e48682dc5a4528c4a512",
+                "url": "https://api.github.com/repos/twigphp/Twig/zipball/18772e0190734944277ee97a02a9a6c6555fcd94",
+                "reference": "18772e0190734944277ee97a02a9a6c6555fcd94",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.2.7"
+                "php": "^7.0",
+                "symfony/polyfill-ctype": "^1.8",
+                "symfony/polyfill-mbstring": "^1.3"
             },
             "require-dev": {
-                "symfony/debug": "~2.7",
-                "symfony/phpunit-bridge": "~2.7"
+                "psr/container": "^1.0",
+                "symfony/phpunit-bridge": "^4.4|^5.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.24-dev"
+                    "dev-master": "2.12-dev"
                 }
             },
             "autoload": {
                 "psr-0": {
                     "Twig_": "lib/"
+                },
+                "psr-4": {
+                    "Twig\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -2097,23 +2201,26 @@
                     "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": "2016-05-30 09:11:59"
+            "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"
         }
     ],
     "packages-dev": [
@@ -2167,7 +2274,7 @@
                 }
             ],
             "description": "This bundle generates code for you",
-            "time": "2016-02-26 04:36:01"
+            "time": "2016-02-26T04:36:01+00:00"
         },
         {
             "name": "symfony/phpunit-bridge",
@@ -2222,7 +2329,7 @@
             ],
             "description": "Symfony PHPUnit Bridge",
             "homepage": "https://symfony.com",
-            "time": "2016-04-05 16:36:54"
+            "time": "2016-04-05T16:36:54+00:00"
         }
     ],
     "aliases": [],
@@ -2233,5 +2340,6 @@
     "platform": {
         "php": ">=5.3.9"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }