diff --git a/php/composer.lock b/php/composer.lock
index 65d7858..74edd57 100644
--- a/php/composer.lock
+++ b/php/composer.lock
@@ -1,7 +1,7 @@
 {
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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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@@ -685,29 +685,31 @@
         },
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+            "version": "v4.4.1",
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-                "reference": "82a3ee2c6662d08ca1adf99e1ef2e31ab48196d4",
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                 "symfony/polyfill-mbstring": "~1.1"
             },
             "require-dev": {
-                "symfony/expression-language": "~3.4|~4.0"
+                "predis/predis": "~1.0",
+                "symfony/expression-language": "^3.4|^4.0|^5.0"
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@@ -734,20 +736,144 @@
             ],
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             "homepage": "https://symfony.com",
-            "time": "2018-01-29T09:06:29+00:00"
+            "time": "2019-11-28T13:33:56+00:00"
+        },
+        {
+            "name": "symfony/mime",
+            "version": "v5.0.1",
+            "source": {
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+                "url": "https://github.com/symfony/mime.git",
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+                "symfony/polyfill-intl-idn": "^1.10",
+                "symfony/polyfill-mbstring": "^1.0"
+            },
+            "conflict": {
+                "symfony/mailer": "<4.4"
+            },
+            "require-dev": {
+                "egulias/email-validator": "^2.1.10",
+                "symfony/dependency-injection": "^4.4|^5.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "5.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Mime\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "A library to manipulate MIME messages",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "mime",
+                "mime-type"
+            ],
+            "time": "2019-11-30T14:12:50+00:00"
+        },
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+                "url": "https://github.com/symfony/polyfill-intl-idn.git",
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+                "symfony/polyfill-mbstring": "^1.3",
+                "symfony/polyfill-php72": "^1.9"
+            },
+            "suggest": {
+                "ext-intl": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.13-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Idn\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Laurent Bassin",
+                    "email": "laurent@bassin.info"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "idn",
+                "intl",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2019-11-27T13:56:44+00:00"
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-            "version": "v1.6.0",
+            "version": "v1.13.1",
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-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296"
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-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296",
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@@ -759,7 +885,7 @@
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+                    "dev-master": "1.13-dev"
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@@ -793,7 +919,62 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-10-11T12:05:26+00:00"
+            "time": "2019-11-27T14:18:11+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php72",
+            "version": "v1.13.1",
+            "source": {
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+                "url": "https://github.com/symfony/polyfill-php72.git",
+                "reference": "66fea50f6cb37a35eea048d75a7d99a45b586038"
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+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
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+            "time": "2019-11-27T13:56:44+00:00"
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