diff --git a/composer.lock b/composer.lock
index a085e80..797f2a4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,9 @@
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-        "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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@@ -143,7 +142,7 @@
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@@ -2123,7 +2123,66 @@
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@@ -2827,7 +2886,7 @@
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             ],
-            "time": "2016-05-12 18:03:57"
+            "time": "2016-05-12T18:03:57+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
@@ -3134,7 +3193,7 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2016-11-15 14:06:22"
+            "time": "2016-11-15T14:06:22+00:00"
         },
         {
             "name": "phpunit/phpunit",
@@ -3216,7 +3275,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-02-10 09:05:10"
+            "time": "2017-02-10T09:05:10+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
@@ -3275,7 +3334,8 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2016-12-08 20:27:08"
+            "abandoned": true,
+            "time": "2016-12-08T20:27:08+00:00"
         },
         {
             "name": "satooshi/php-coveralls",
@@ -3333,7 +3393,8 @@
                 "github",
                 "test"
             ],
-            "time": "2016-01-20 17:35:46"
+            "abandoned": "php-coveralls/php-coveralls",
+            "time": "2016-01-20T17:35:46+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -3378,7 +3439,7 @@
             ],
             "description": "Looks up which function or method a line of code belongs to",
             "homepage": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/",
-            "time": "2016-02-13 06:45:14"
+            "time": "2016-02-13T06:45:14+00:00"
         },
         {
             "name": "sebastian/comparator",
@@ -3442,7 +3503,7 @@
                 "compare",
                 "equality"
             ],
-            "time": "2017-01-29 09:50:25"
+            "time": "2017-01-29T09:50:25+00:00"
         },
         {
             "name": "sebastian/diff",
@@ -3494,7 +3555,7 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2015-12-08 07:14:41"
+            "time": "2015-12-08T07:14:41+00:00"
         },
         {
             "name": "sebastian/environment",
@@ -3544,7 +3605,7 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2016-11-26 07:53:53"
+            "time": "2016-11-26T07:53:53+00:00"
         },
         {
             "name": "sebastian/exporter",
@@ -3611,7 +3672,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2016-11-19 08:54:04"
+            "time": "2016-11-19T08:54:04+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -3662,7 +3723,7 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2015-10-12 03:26:01"
+            "time": "2015-10-12T03:26:01+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
@@ -3708,7 +3769,7 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2016-11-19 07:35:10"
+            "time": "2016-11-19T07:35:10+00:00"
         },
         {
             "name": "sebastian/recursion-context",
@@ -3761,7 +3822,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2016-11-19 07:33:16"
+            "time": "2016-11-19T07:33:16+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -3803,7 +3864,7 @@
             ],
             "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",
@@ -3846,7 +3907,7 @@
             ],
             "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": "symfony/config",
@@ -3902,7 +3963,7 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2017-02-14 16:27:43"
+            "time": "2017-02-14T16:27:43+00:00"
         },
         {
             "name": "symfony/filesystem",
@@ -3951,7 +4012,7 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2017-01-08 20:47:33"
+            "time": "2017-01-08T20:47:33+00:00"
         },
         {
             "name": "symfony/stopwatch",
@@ -4000,7 +4061,7 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2017-01-02 20:32:22"
+            "time": "2017-01-02T20:32:22+00:00"
         },
         {
             "name": "symfony/yaml",
@@ -4055,7 +4116,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2017-02-16 22:46:52"
+            "time": "2017-02-16T22:46:52+00:00"
         },
         {
             "name": "webmozart/assert",
@@ -4105,7 +4166,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23 20:04:58"
+            "time": "2016-11-23T20:04:58+00:00"
         }
     ],
     "aliases": [],