diff --git a/composer.json b/composer.json
index 9c9d2ae3..7be5f03f 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
 		"g105b/phpcsv": "1.*",
 		"satooshi/php-coveralls": "0.6.*",
 
-		"phpunit/phpunit": "4.1.*",
+		"phpunit/phpunit": "^5.1",
 
 		"behat/behat": "2.*@stable",
 		"behat/mink": "@stable",
diff --git a/composer.lock b/composer.lock
index f97730c7..8da74272 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
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     ],
-    "hash": "35ab21a8da6eb8c704bfc9866cad08ba",
-    "content-hash": "b9129c8a163420f8a68ea49b5252b63f",
+    "hash": "4dcca3b397c1703419667b2d75900bf4",
+    "content-hash": "663ee8de5055bae89898b385009ddf50",
     "packages": [
         {
             "name": "behat/behat",
@@ -350,6 +350,60 @@
             ],
             "time": "2015-09-21 21:31:11"
         },
+        {
+            "name": "doctrine/instantiator",
+            "version": "1.0.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/instantiator.git",
+                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
+            },
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+                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3,<8.0-DEV"
+            },
+            "require-dev": {
+                "athletic/athletic": "~0.1.8",
+                "ext-pdo": "*",
+                "ext-phar": "*",
+                "phpunit/phpunit": "~4.0",
+                "squizlabs/php_codesniffer": "~2.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Instantiator\\": "src/Doctrine/Instantiator/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Marco Pivetta",
+                    "email": "ocramius@gmail.com",
+                    "homepage": "http://ocramius.github.com/"
+                }
+            ],
+            "description": "A small, lightweight utility to instantiate objects in PHP without invoking their constructors",
+            "homepage": "https://github.com/doctrine/instantiator",
+            "keywords": [
+                "constructor",
+                "instantiate"
+            ],
+            "time": "2015-06-14 21:17:01"
+        },
         {
             "name": "fabpot/goutte",
             "version": "v1.0.7",
@@ -408,16 +462,16 @@
         },
         {
             "name": "g105b/phpcsv",
-            "version": "v1.0.1",
+            "version": "v1.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/g105b/phpcsv.git",
-                "reference": "790227e3f4d89f3bf8e84384a5a341922103eb68"
+                "reference": "bcb5995f737dd84db6624f2f2f84898c29e0d631"
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-                "reference": "790227e3f4d89f3bf8e84384a5a341922103eb68",
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             "require-dev": {
@@ -444,7 +498,7 @@
                 "read",
                 "write"
             ],
-            "time": "2015-05-12 08:48:59"
+            "time": "2015-10-08 14:36:06"
         },
         {
             "name": "guzzle/guzzle",
@@ -595,16 +649,16 @@
         },
         {
             "name": "leafo/scssphp",
-            "version": "v0.3.1",
+            "version": "v0.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/leafo/scssphp.git",
-                "reference": "2977aa444415787e931c048989b8c9195fd5b344"
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-                "reference": "2977aa444415787e931c048989b8c9195fd5b344",
+                "url": "https://api.github.com/repos/leafo/scssphp/zipball/e89391b29b5eb66e211ce4d20ccb2bb519137c08",
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             "require": {
@@ -647,20 +701,20 @@
                 "scss",
                 "stylesheet"
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-            "time": "2015-09-12 01:42:27"
+            "time": "2015-10-23 17:15:30"
         },
         {
             "name": "matthiasmullie/minify",
-            "version": "1.3.28",
+            "version": "1.3.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/matthiasmullie/minify.git",
-                "reference": "2cee2544198d97bca4ba094bc2df27d6458da1af"
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-                "reference": "2cee2544198d97bca4ba094bc2df27d6458da1af",
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@@ -669,9 +723,9 @@
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-                "phpunit/phpunit": "4.3.*",
-                "satooshi/php-coveralls": "dev-master",
-                "scrapbook/psr-cache": "~0.2"
+                "matthiasmullie/scrapbook": "~1.0",
+                "phpunit/phpunit": "~4.8",
+                "satooshi/php-coveralls": "~1.0"
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             "bin": [
                 "bin/minifycss",
@@ -704,20 +758,20 @@
                 "minifier",
                 "minify"
             ],
-            "time": "2015-08-20 14:49:37"
+            "time": "2016-01-11 02:10:11"
         },
         {
             "name": "matthiasmullie/path-converter",
-            "version": "1.0.5",
+            "version": "1.0.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/matthiasmullie/path-converter.git",
-                "reference": "b1e31c51e8c207ad6114f5b4ac4e652bc936c380"
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-                "reference": "b1e31c51e8c207ad6114f5b4ac4e652bc936c380",
+                "url": "https://api.github.com/repos/matthiasmullie/path-converter/zipball/83609c1bb251b2540eba912615571a501a0a06a6",
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@@ -725,8 +779,8 @@
                 "php": ">=5.3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "4.3.*",
-                "satooshi/php-coveralls": "dev-master"
+                "phpunit/phpunit": "~4.8",
+                "satooshi/php-coveralls": "~1.0"
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             "autoload": {
@@ -754,7 +808,7 @@
                 "paths",
                 "relative"
             ],
-            "time": "2015-06-01 15:20:30"
+            "time": "2016-01-07 00:41:13"
         },
         {
             "name": "michelf/php-markdown",
@@ -807,22 +861,173 @@
             ],
             "time": "2014-05-05 02:43:50"
         },
+        {
+            "name": "myclabs/deep-copy",
+            "version": "1.5.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/myclabs/DeepCopy.git",
+                "reference": "e3abefcd7f106677fd352cd7c187d6c969aa9ddc"
+            },
+            "dist": {
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+                "shasum": ""
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+            "require": {
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+            "require-dev": {
+                "doctrine/collections": "1.*",
+                "phpunit/phpunit": "~4.1"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
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+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Create deep copies (clones) of your objects",
+            "homepage": "https://github.com/myclabs/DeepCopy",
+            "keywords": [
+                "clone",
+                "copy",
+                "duplicate",
+                "object",
+                "object graph"
+            ],
+            "time": "2015-11-07 22:20:37"
+        },
+        {
+            "name": "phpdocumentor/reflection-docblock",
+            "version": "2.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
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+            "require-dev": {
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+            },
+            "suggest": {
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+                "erusev/parsedown": "~1.0"
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+            "notification-url": "https://packagist.org/downloads/",
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+            "version": "v1.5.0",
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+                "url": "https://github.com/phpspec/prophecy.git",
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@@ -831,7 +1036,7 @@
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@@ -841,7 +1046,7 @@
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@@ -867,35 +1072,37 @@
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@@ -912,7 +1119,7 @@
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@@ -1047,16 +1254,16 @@
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@@ -1065,18 +1272,22 @@
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@@ -1111,34 +1318,36 @@
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