diff --git a/composer.json b/composer.json
index 5516c750..7aff1d6c 100644
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diff --git a/composer.lock b/composer.lock
index 1858f7c6..04f4f949 100644
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@@ -181,7 +180,7 @@
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@@ -223,7 +222,7 @@
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@@ -322,7 +321,7 @@
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@@ -369,7 +368,7 @@
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@@ -432,36 +431,36 @@
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@@ -542,7 +541,7 @@
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@@ -583,7 +582,7 @@
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@@ -632,7 +631,7 @@
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@@ -681,20 +680,20 @@
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@@ -822,7 +821,7 @@
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@@ -871,7 +870,7 @@
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@@ -921,7 +920,7 @@
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@@ -966,34 +965,34 @@
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@@ -1030,7 +1029,7 @@
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@@ -1082,7 +1081,7 @@
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@@ -1132,34 +1131,34 @@
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@@ -1199,7 +1198,7 @@
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@@ -1250,34 +1249,33 @@
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+            "version": "2.0.0",
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                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8"
+                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a"
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-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/2c3ba150cbec723aa057506e73a8d33bdb286c9a",
+                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=5.3.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
+                "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -1395,7 +1348,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2017-03-03 06:23:57"
+            "time": "2016-11-19T07:33:16+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -1437,7 +1390,7 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
-            "time": "2015-07-28 20:34:47"
+            "time": "2015-07-28T20:34:47+00:00"
         },
         {
             "name": "sebastian/version",
@@ -1480,7 +1433,7 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2016-10-03 07:35:21"
+            "time": "2016-10-03T07:35:21+00:00"
         },
         {
             "name": "squizlabs/php_codesniffer",
@@ -1558,7 +1511,62 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2017-03-01 22:17:45"
+            "time": "2017-03-01T22:17:45+00:00"
+        },
+        {
+            "name": "symfony/yaml",
+            "version": "v3.2.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/yaml.git",
+                "reference": "093e416ad096355149e265ea2e4cc1f9ee40ab1a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/093e416ad096355149e265ea2e4cc1f9ee40ab1a",
+                "reference": "093e416ad096355149e265ea2e4cc1f9ee40ab1a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.5.9"
+            },
+            "require-dev": {
+                "symfony/console": "~2.8|~3.0"
+            },
+            "suggest": {
+                "symfony/console": "For validating YAML files using the lint command"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.2-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Yaml\\": ""
+                },
+                "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": "Symfony Yaml Component",
+            "homepage": "https://symfony.com",
+            "time": "2017-03-07T16:47:02+00:00"
         },
         {
             "name": "webmozart/assert",
@@ -1608,7 +1616,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23 20:04:58"
+            "time": "2016-11-23T20:04:58+00:00"
         },
         {
             "name": "zendframework/zend-cache",
@@ -1677,7 +1685,7 @@
                 "cache",
                 "zf2"
             ],
-            "time": "2016-12-16 11:35:47"
+            "time": "2016-12-16T11:35:47+00:00"
         },
         {
             "name": "zendframework/zend-coding-standard",
@@ -1706,7 +1714,7 @@
                 "Coding Standard",
                 "zf"
             ],
-            "time": "2016-11-09 21:30:43"
+            "time": "2016-11-09T21:30:43+00:00"
         },
         {
             "name": "zendframework/zend-db",
@@ -1763,7 +1771,7 @@
                 "db",
                 "zf2"
             ],
-            "time": "2016-08-09 19:28:55"
+            "time": "2016-08-09T19:28:55+00:00"
         },
         {
             "name": "zendframework/zend-eventmanager",
@@ -1817,7 +1825,7 @@
                 "events",
                 "zf2"
             ],
-            "time": "2016-12-19 21:47:12"
+            "time": "2016-12-19T21:47:12+00:00"
         },
         {
             "name": "zendframework/zend-http",
@@ -1867,7 +1875,7 @@
                 "http",
                 "zf2"
             ],
-            "time": "2017-01-31 14:41:02"
+            "time": "2017-01-31T14:41:02+00:00"
         },
         {
             "name": "zendframework/zend-loader",
@@ -1911,7 +1919,7 @@
                 "loader",
                 "zf2"
             ],
-            "time": "2015-06-03 14:05:47"
+            "time": "2015-06-03T14:05:47+00:00"
         },
         {
             "name": "zendframework/zend-servicemanager",
@@ -1974,7 +1982,7 @@
                 "servicemanager",
                 "zf"
             ],
-            "time": "2017-03-01 22:08:02"
+            "time": "2017-03-01T22:08:02+00:00"
         },
         {
             "name": "zendframework/zend-uri",
@@ -2021,7 +2029,7 @@
                 "uri",
                 "zf2"
             ],
-            "time": "2016-02-17 22:38:51"
+            "time": "2016-02-17T22:38:51+00:00"
         },
         {
             "name": "zendframework/zend-validator",
@@ -2092,13 +2100,13 @@
                 "validator",
                 "zf2"
             ],
-            "time": "2017-03-17 10:15:50"
+            "time": "2017-03-17T10:15:50+00:00"
         }
     ],
     "aliases": [],
-    "minimum-stability": "dev",
+    "minimum-stability": "stable",
     "stability-flags": [],
-    "prefer-stable": true,
+    "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
         "php": "^5.6 || ^7.0"