Update Composer, update everything

vendor/symfony/var-dumper/composer.json

@@ -0,0 +1,53 @@
+{
+    "name": "symfony/var-dumper",
+    "type": "library",
+    "description": "Symfony mechanism for exploring and dumping PHP variables",
+    "keywords": ["dump", "debug"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nicolas Grekas",
+            "email": "p@tchwork.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": "^7.1.3",
+        "symfony/polyfill-mbstring": "~1.0",
+        "symfony/polyfill-php72": "~1.5"
+    },
+    "require-dev": {
+        "ext-iconv": "*",
+        "symfony/process": "~3.4|~4.0",
+        "twig/twig": "~1.34|~2.4"
+    },
+    "conflict": {
+        "phpunit/phpunit": "<4.8.35|<5.4.3,>=5.0",
+        "symfony/console": "<3.4"
+    },
+    "suggest": {
+        "ext-iconv": "To convert non-UTF-8 strings to UTF-8 (or symfony/polyfill-iconv in case ext-iconv cannot be used).",
+        "ext-intl": "To show region name in time zone dump",
+        "symfony/console": "To use the ServerDumpCommand and/or the bin/var-dump-server script"
+    },
+    "autoload": {
+        "files": [ "Resources/functions/dump.php" ],
+        "psr-4": { "Symfony\\Component\\VarDumper\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "bin": [
+        "Resources/bin/var-dump-server"
+    ],
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "4.1-dev"
+        }
+    }
+}