diff --git a/composer.lock b/composer.lock
index da42f22..da8e00d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -9,16 +9,16 @@
     "packages-dev": [
         {
             "name": "composer/ca-bundle",
-            "version": "1.0.6",
+            "version": "1.0.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/ca-bundle.git",
-                "reference": "a795611394b3c05164fd0eb291b492b39339cba4"
+                "reference": "b17e6153cb7f33c7e44eb59578dc12eee5dc8e12"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/ca-bundle/zipball/a795611394b3c05164fd0eb291b492b39339cba4",
-                "reference": "a795611394b3c05164fd0eb291b492b39339cba4",
+                "url": "https://api.github.com/repos/composer/ca-bundle/zipball/b17e6153cb7f33c7e44eb59578dc12eee5dc8e12",
+                "reference": "b17e6153cb7f33c7e44eb59578dc12eee5dc8e12",
                 "shasum": ""
             },
             "require": {
@@ -27,6 +27,7 @@
                 "php": "^5.3.2 || ^7.0"
             },
             "require-dev": {
+                "phpunit/phpunit": "^4.5",
                 "psr/log": "^1.0",
                 "symfony/process": "^2.5 || ^3.0"
             },
@@ -63,27 +64,27 @@
                 "ssl",
                 "tls"
             ],
-            "time": "2016-11-02T18:11:27+00:00"
+            "time": "2017-03-06T11:59:08+00:00"
         },
         {
             "name": "composer/composer",
-            "version": "1.3.2",
+            "version": "1.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/composer.git",
-                "reference": "e7569edb4a5eadcbb2e4ad5ed753282260f281df"
+                "reference": "7ee2a5e1cf32e9c8439445fe8dce2c046c2abebd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/composer/zipball/e7569edb4a5eadcbb2e4ad5ed753282260f281df",
-                "reference": "e7569edb4a5eadcbb2e4ad5ed753282260f281df",
+                "url": "https://api.github.com/repos/composer/composer/zipball/7ee2a5e1cf32e9c8439445fe8dce2c046c2abebd",
+                "reference": "7ee2a5e1cf32e9c8439445fe8dce2c046c2abebd",
                 "shasum": ""
             },
             "require": {
                 "composer/ca-bundle": "^1.0",
                 "composer/semver": "^1.0",
                 "composer/spdx-licenses": "^1.0",
-                "justinrainbow/json-schema": "^1.6 || ^2.0 || ^3.0 || ^4.0",
+                "justinrainbow/json-schema": "^3.0 || ^4.0 || ^5.0",
                 "php": "^5.3.2 || ^7.0",
                 "psr/log": "^1.0",
                 "seld/cli-prompt": "^1.0",
@@ -109,7 +110,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.3-dev"
+                    "dev-master": "1.4-dev"
                 }
             },
             "autoload": {
@@ -140,7 +141,7 @@
                 "dependency",
                 "package"
             ],
-            "time": "2017-01-27T17:23:42+00:00"
+            "time": "2017-03-10T08:29:45+00:00"
         },
         {
             "name": "composer/semver",
@@ -206,16 +207,16 @@
         },
         {
             "name": "composer/spdx-licenses",
-            "version": "1.1.5",
+            "version": "1.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/spdx-licenses.git",
-                "reference": "96c6a07b05b716e89a44529d060bc7f5c263cb13"
+                "reference": "2603a0d7ddc00a015deb576fa5297ca43dee6b1c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/spdx-licenses/zipball/96c6a07b05b716e89a44529d060bc7f5c263cb13",
-                "reference": "96c6a07b05b716e89a44529d060bc7f5c263cb13",
+                "url": "https://api.github.com/repos/composer/spdx-licenses/zipball/2603a0d7ddc00a015deb576fa5297ca43dee6b1c",
+                "reference": "2603a0d7ddc00a015deb576fa5297ca43dee6b1c",
                 "shasum": ""
             },
             "require": {
@@ -263,7 +264,7 @@
                 "spdx",
                 "validator"
             ],
-            "time": "2016-09-28T07:17:45+00:00"
+            "time": "2017-04-03T19:08:52+00:00"
         },
         {
             "name": "doctrine/instantiator",
@@ -321,22 +322,23 @@
         },
         {
             "name": "justinrainbow/json-schema",
-            "version": "4.1.0",
+            "version": "5.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/justinrainbow/json-schema.git",
-                "reference": "d39c56a46b3ebe1f3696479966cd2b9f50aaa24f"
+                "reference": "e3c9bccdc38bbd09bcac0131c00f3be58368b416"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/justinrainbow/json-schema/zipball/d39c56a46b3ebe1f3696479966cd2b9f50aaa24f",
-                "reference": "d39c56a46b3ebe1f3696479966cd2b9f50aaa24f",
+                "url": "https://api.github.com/repos/justinrainbow/json-schema/zipball/e3c9bccdc38bbd09bcac0131c00f3be58368b416",
+                "reference": "e3c9bccdc38bbd09bcac0131c00f3be58368b416",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
             "require-dev": {
+                "friendsofphp/php-cs-fixer": "^2.1",
                 "json-schema/json-schema-test-suite": "1.2.0",
                 "phpdocumentor/phpdocumentor": "~2",
                 "phpunit/phpunit": "^4.8.22"
@@ -347,7 +349,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0.x-dev"
+                    "dev-master": "5.0.x-dev"
                 }
             },
             "autoload": {
@@ -383,7 +385,7 @@
                 "json",
                 "schema"
             ],
-            "time": "2016-12-22T16:43:46+00:00"
+            "time": "2017-03-22T22:43:35+00:00"
         },
         {
             "name": "malukenho/docheader",
@@ -483,16 +485,16 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.6.0",
+            "version": "1.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "5a5a9fc8025a08d8919be87d6884d5a92520cefe"
+                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/5a5a9fc8025a08d8919be87d6884d5a92520cefe",
-                "reference": "5a5a9fc8025a08d8919be87d6884d5a92520cefe",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/8e6e04167378abf1ddb4d3522d8755c5fd90d102",
+                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102",
                 "shasum": ""
             },
             "require": {
@@ -521,7 +523,109 @@
                 "object",
                 "object graph"
             ],
-            "time": "2017-01-26T22:05:40+00:00"
+            "time": "2017-04-12T18:52:22+00:00"
+        },
+        {
+            "name": "phar-io/manifest",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phar-io/manifest.git",
+                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phar-io/manifest/zipball/2df402786ab5368a0169091f61a7c1e0eb6852d0",
+                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0",
+                "shasum": ""
+            },
+            "require": {
+                "ext-dom": "*",
+                "ext-phar": "*",
+                "phar-io/version": "^1.0.1",
+                "php": "^5.6 || ^7.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Arne Blankerts",
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Heuer",
+                    "email": "sebastian@phpeople.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
+            "time": "2017-03-05T18:14:27+00:00"
+        },
+        {
+            "name": "phar-io/version",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phar-io/version.git",
+                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phar-io/version/zipball/a70c0ced4be299a63d32fa96d9281d03e94041df",
+                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.6 || ^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Arne Blankerts",
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Heuer",
+                    "email": "sebastian@phpeople.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Library for handling version information and constraints",
+            "time": "2017-03-05T17:38:23+00:00"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -671,27 +775,27 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "v1.6.2",
+            "version": "v1.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "6c52c2722f8460122f96f86346600e1077ce22cb"
+                "reference": "93d39f1f7f9326d746203c7c056f300f7f126073"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/6c52c2722f8460122f96f86346600e1077ce22cb",
-                "reference": "6c52c2722f8460122f96f86346600e1077ce22cb",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/93d39f1f7f9326d746203c7c056f300f7f126073",
+                "reference": "93d39f1f7f9326d746203c7c056f300f7f126073",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
                 "phpdocumentor/reflection-docblock": "^2.0|^3.0.2",
-                "sebastian/comparator": "^1.1",
-                "sebastian/recursion-context": "^1.0|^2.0"
+                "sebastian/comparator": "^1.1|^2.0",
+                "sebastian/recursion-context": "^1.0|^2.0|^3.0"
             },
             "require-dev": {
-                "phpspec/phpspec": "^2.0",
+                "phpspec/phpspec": "^2.5|^3.2",
                 "phpunit/phpunit": "^4.8 || ^5.6.5"
             },
             "type": "library",
@@ -730,44 +834,45 @@
                 "spy",
                 "stub"
             ],
-            "time": "2016-11-21T14:58:47+00:00"
+            "time": "2017-03-02T20:05:34+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "4.0.5",
+            "version": "5.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "c19cfc7cbb0e9338d8c469c7eedecc2a428b0971"
+                "reference": "dc421f9ca5082a0c0cb04afb171c765f79add85b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/c19cfc7cbb0e9338d8c469c7eedecc2a428b0971",
-                "reference": "c19cfc7cbb0e9338d8c469c7eedecc2a428b0971",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/dc421f9ca5082a0c0cb04afb171c765f79add85b",
+                "reference": "dc421f9ca5082a0c0cb04afb171c765f79add85b",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0",
-                "phpunit/php-file-iterator": "~1.3",
-                "phpunit/php-text-template": "~1.2",
-                "phpunit/php-token-stream": "^1.4.2",
-                "sebastian/code-unit-reverse-lookup": "~1.0",
-                "sebastian/environment": "^1.3.2 || ^2.0",
-                "sebastian/version": "~1.0|~2.0"
+                "ext-dom": "*",
+                "ext-xmlwriter": "*",
+                "php": "^7.0",
+                "phpunit/php-file-iterator": "^1.3",
+                "phpunit/php-text-template": "^1.2",
+                "phpunit/php-token-stream": "^1.4.11 || ^2.0",
+                "sebastian/code-unit-reverse-lookup": "^1.0",
+                "sebastian/environment": "^3.0",
+                "sebastian/version": "^2.0",
+                "theseer/tokenizer": "^1.1"
             },
             "require-dev": {
-                "ext-xdebug": ">=2.1.4",
-                "phpunit/phpunit": "^5.4"
+                "ext-xdebug": "^2.5",
+                "phpunit/phpunit": "^6.0"
             },
             "suggest": {
-                "ext-dom": "*",
-                "ext-xdebug": ">=2.4.0",
-                "ext-xmlwriter": "*"
+                "ext-xdebug": "^2.5.3"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0.x-dev"
+                    "dev-master": "5.2.x-dev"
                 }
             },
             "autoload": {
@@ -793,7 +898,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-01-20T15:06:43+00:00"
+            "time": "2017-04-21T08:03:57+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -885,25 +990,30 @@
         },
         {
             "name": "phpunit/php-timer",
-            "version": "1.0.8",
+            "version": "1.0.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-timer.git",
-                "reference": "38e9124049cf1a164f1e4537caf19c99bf1eb260"
+                "reference": "3dcf38ca72b158baf0bc245e9184d3fdffa9c46f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/38e9124049cf1a164f1e4537caf19c99bf1eb260",
-                "reference": "38e9124049cf1a164f1e4537caf19c99bf1eb260",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/3dcf38ca72b158baf0bc245e9184d3fdffa9c46f",
+                "reference": "3dcf38ca72b158baf0bc245e9184d3fdffa9c46f",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": "^5.3.3 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4|~5"
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.0"
             },
             "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                }
+            },
             "autoload": {
                 "classmap": [
                     "src/"
@@ -925,20 +1035,20 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2016-05-12T18:03:57+00:00"
+            "time": "2017-02-26T11:10:40+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
-            "version": "1.4.9",
+            "version": "1.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-token-stream.git",
-                "reference": "3b402f65a4cc90abf6e1104e388b896ce209631b"
+                "reference": "e03f8f67534427a787e21a385a67ec3ca6978ea7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/3b402f65a4cc90abf6e1104e388b896ce209631b",
-                "reference": "3b402f65a4cc90abf6e1104e388b896ce209631b",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-token-stream/zipball/e03f8f67534427a787e21a385a67ec3ca6978ea7",
+                "reference": "e03f8f67534427a787e21a385a67ec3ca6978ea7",
                 "shasum": ""
             },
             "require": {
@@ -974,20 +1084,20 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2016-11-15T14:06:22+00:00"
+            "time": "2017-02-27T10:12:30+00:00"
         },
         {
             "name": "phpunit/phpunit",
-            "version": "5.7.14",
+            "version": "6.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "4906b8faf23e42612182fd212eb6f4c0f2954b57"
+                "reference": "9fbc261d90eda9e7ef9f7441d32997270f8e2019"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/4906b8faf23e42612182fd212eb6f4c0f2954b57",
-                "reference": "4906b8faf23e42612182fd212eb6f4c0f2954b57",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/9fbc261d90eda9e7ef9f7441d32997270f8e2019",
+                "reference": "9fbc261d90eda9e7ef9f7441d32997270f8e2019",
                 "shasum": ""
             },
             "require": {
@@ -996,33 +1106,35 @@
                 "ext-libxml": "*",
                 "ext-mbstring": "*",
                 "ext-xml": "*",
-                "myclabs/deep-copy": "~1.3",
-                "php": "^5.6 || ^7.0",
-                "phpspec/prophecy": "^1.6.2",
-                "phpunit/php-code-coverage": "^4.0.4",
-                "phpunit/php-file-iterator": "~1.4",
-                "phpunit/php-text-template": "~1.2",
+                "myclabs/deep-copy": "^1.3",
+                "phar-io/manifest": "^1.0.1",
+                "phar-io/version": "^1.0",
+                "php": "^7.0",
+                "phpspec/prophecy": "^1.7",
+                "phpunit/php-code-coverage": "^5.2",
+                "phpunit/php-file-iterator": "^1.4",
+                "phpunit/php-text-template": "^1.2",
                 "phpunit/php-timer": "^1.0.6",
-                "phpunit/phpunit-mock-objects": "^3.2",
-                "sebastian/comparator": "^1.2.4",
-                "sebastian/diff": "~1.2",
-                "sebastian/environment": "^1.3.4 || ^2.0",
-                "sebastian/exporter": "~2.0",
-                "sebastian/global-state": "^1.1",
-                "sebastian/object-enumerator": "~2.0",
-                "sebastian/resource-operations": "~1.0",
-                "sebastian/version": "~1.0.3|~2.0",
-                "symfony/yaml": "~2.1|~3.0"
+                "phpunit/phpunit-mock-objects": "^4.0",
+                "sebastian/comparator": "^2.0",
+                "sebastian/diff": "^1.2",
+                "sebastian/environment": "^3.0",
+                "sebastian/exporter": "^3.1",
+                "sebastian/global-state": "^1.1 || ^2.0",
+                "sebastian/object-enumerator": "^3.0.2",
+                "sebastian/resource-operations": "^1.0",
+                "sebastian/version": "^2.0"
             },
             "conflict": {
-                "phpdocumentor/reflection-docblock": "3.0.2"
+                "phpdocumentor/reflection-docblock": "3.0.2",
+                "phpunit/dbunit": "<3.0"
             },
             "require-dev": {
                 "ext-pdo": "*"
             },
             "suggest": {
                 "ext-xdebug": "*",
-                "phpunit/php-invoker": "~1.1"
+                "phpunit/php-invoker": "^1.1"
             },
             "bin": [
                 "phpunit"
@@ -1030,7 +1142,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "5.7.x-dev"
+                    "dev-master": "6.1.x-dev"
                 }
             },
             "autoload": {
@@ -1056,33 +1168,33 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-02-19T07:22:16+00:00"
+            "time": "2017-04-21T08:02:24+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
-            "version": "3.4.3",
+            "version": "4.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit-mock-objects.git",
-                "reference": "3ab72b65b39b491e0c011e2e09bb2206c2aa8e24"
+                "reference": "eabce450df194817a7d7e27e19013569a903a2bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/3ab72b65b39b491e0c011e2e09bb2206c2aa8e24",
-                "reference": "3ab72b65b39b491e0c011e2e09bb2206c2aa8e24",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/eabce450df194817a7d7e27e19013569a903a2bf",
+                "reference": "eabce450df194817a7d7e27e19013569a903a2bf",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
-                "php": "^5.6 || ^7.0",
+                "php": "^7.0",
                 "phpunit/php-text-template": "^1.2",
-                "sebastian/exporter": "^1.2 || ^2.0"
+                "sebastian/exporter": "^3.0"
             },
             "conflict": {
-                "phpunit/phpunit": "<5.4.0"
+                "phpunit/phpunit": "<6.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^5.4"
+                "phpunit/phpunit": "^6.0"
             },
             "suggest": {
                 "ext-soap": "*"
@@ -1090,7 +1202,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.2.x-dev"
+                    "dev-master": "4.0.x-dev"
                 }
             },
             "autoload": {
@@ -1115,7 +1227,7 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2016-12-08T20:27:08+00:00"
+            "time": "2017-03-03T06:30:20+00:00"
         },
         {
             "name": "psr/log",
@@ -1166,23 +1278,23 @@
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
-            "version": "1.0.0",
+            "version": "1.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/code-unit-reverse-lookup.git",
-                "reference": "c36f5e7cfce482fde5bf8d10d41a53591e0198fe"
+                "reference": "4419fcdb5eabb9caa61a27c7a1db532a6b55dd18"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/code-unit-reverse-lookup/zipball/c36f5e7cfce482fde5bf8d10d41a53591e0198fe",
-                "reference": "c36f5e7cfce482fde5bf8d10d41a53591e0198fe",
+                "url": "https://api.github.com/repos/sebastianbergmann/code-unit-reverse-lookup/zipball/4419fcdb5eabb9caa61a27c7a1db532a6b55dd18",
+                "reference": "4419fcdb5eabb9caa61a27c7a1db532a6b55dd18",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~5"
+                "phpunit/phpunit": "^5.7 || ^6.0"
             },
             "type": "library",
             "extra": {
@@ -1207,34 +1319,34 @@
             ],
             "description": "Looks up which function or method a line of code belongs to",
             "homepage": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/",
-            "time": "2016-02-13T06:45:14+00:00"
+            "time": "2017-03-04T06:30:41+00:00"
         },
         {
             "name": "sebastian/comparator",
-            "version": "1.2.4",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "2b7424b55f5047b47ac6e5ccb20b2aea4011d9be"
+                "reference": "20f84f468cb67efee293246e6a09619b891f55f0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/2b7424b55f5047b47ac6e5ccb20b2aea4011d9be",
-                "reference": "2b7424b55f5047b47ac6e5ccb20b2aea4011d9be",
+                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/20f84f468cb67efee293246e6a09619b891f55f0",
+                "reference": "20f84f468cb67efee293246e6a09619b891f55f0",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3",
-                "sebastian/diff": "~1.2",
-                "sebastian/exporter": "~1.2 || ~2.0"
+                "php": "^7.0",
+                "sebastian/diff": "^1.2",
+                "sebastian/exporter": "^3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.4"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -1271,7 +1383,7 @@
                 "compare",
                 "equality"
             ],
-            "time": "2017-01-29T09:50:25+00:00"
+            "time": "2017-03-03T06:26:08+00:00"
         },
         {
             "name": "sebastian/diff",
@@ -1327,28 +1439,28 @@
         },
         {
             "name": "sebastian/environment",
-            "version": "2.0.0",
+            "version": "3.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "5795ffe5dc5b02460c3e34222fee8cbe245d8fac"
+                "reference": "11e7710b7724d42c62249b0e9d3030240398949d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/5795ffe5dc5b02460c3e34222fee8cbe245d8fac",
-                "reference": "5795ffe5dc5b02460c3e34222fee8cbe245d8fac",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/11e7710b7724d42c62249b0e9d3030240398949d",
+                "reference": "11e7710b7724d42c62249b0e9d3030240398949d",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^5.0"
+                "phpunit/phpunit": "^6.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.0.x-dev"
                 }
             },
             "autoload": {
@@ -1373,34 +1485,34 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2016-11-26T07:53:53+00:00"
+            "time": "2017-04-21T14:40:32+00:00"
         },
         {
             "name": "sebastian/exporter",
-            "version": "2.0.0",
+            "version": "3.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4"
+                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4",
-                "reference": "ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/234199f4528de6d12aaa58b612e98f7d36adb937",
+                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3",
-                "sebastian/recursion-context": "~2.0"
+                "php": "^7.0",
+                "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
                 "ext-mbstring": "*",
-                "phpunit/phpunit": "~4.4"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.1.x-dev"
                 }
             },
             "autoload": {
@@ -1440,7 +1552,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2016-11-19T08:54:04+00:00"
+            "time": "2017-04-03T13:19:02+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -1495,29 +1607,30 @@
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "2.0.1",
+            "version": "3.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "1311872ac850040a79c3c058bea3e22d0f09cbb7"
+                "reference": "31dd3379d16446c5d86dec32ab1ad1f378581ad8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/1311872ac850040a79c3c058bea3e22d0f09cbb7",
-                "reference": "1311872ac850040a79c3c058bea3e22d0f09cbb7",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/31dd3379d16446c5d86dec32ab1ad1f378581ad8",
+                "reference": "31dd3379d16446c5d86dec32ab1ad1f378581ad8",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6",
-                "sebastian/recursion-context": "~2.0"
+                "php": "^7.0",
+                "sebastian/object-reflector": "^1.0",
+                "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~5"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.0.x-dev"
                 }
             },
             "autoload": {
@@ -1537,32 +1650,77 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2017-02-18T15:18:39+00:00"
+            "time": "2017-03-12T15:17:29+00:00"
+        },
+        {
+            "name": "sebastian/object-reflector",
+            "version": "1.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/object-reflector.git",
+                "reference": "773f97c67f28de00d397be301821b06708fca0be"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-reflector/zipball/773f97c67f28de00d397be301821b06708fca0be",
+                "reference": "773f97c67f28de00d397be301821b06708fca0be",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^6.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.1-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                }
+            ],
+            "description": "Allows reflection of object attributes, including inherited and non-public ones",
+            "homepage": "https://github.com/sebastianbergmann/object-reflector/",
+            "time": "2017-03-29T09:07:27+00:00"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "2.0.0",
+            "version": "3.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a"
+                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/2c3ba150cbec723aa057506e73a8d33bdb286c9a",
-                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
+                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.4"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.0.x-dev"
                 }
             },
             "autoload": {
@@ -1590,7 +1748,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2016-11-19T07:33:16+00:00"
+            "time": "2017-03-03T06:23:57+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -1679,16 +1837,16 @@
         },
         {
             "name": "seld/cli-prompt",
-            "version": "1.0.2",
+            "version": "1.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Seldaek/cli-prompt.git",
-                "reference": "8cbe10923cae5bcd7c5a713f6703fc4727c8c1b4"
+                "reference": "a19a7376a4689d4d94cab66ab4f3c816019ba8dd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Seldaek/cli-prompt/zipball/8cbe10923cae5bcd7c5a713f6703fc4727c8c1b4",
-                "reference": "8cbe10923cae5bcd7c5a713f6703fc4727c8c1b4",
+                "url": "https://api.github.com/repos/Seldaek/cli-prompt/zipball/a19a7376a4689d4d94cab66ab4f3c816019ba8dd",
+                "reference": "a19a7376a4689d4d94cab66ab4f3c816019ba8dd",
                 "shasum": ""
             },
             "require": {
@@ -1723,25 +1881,28 @@
                 "input",
                 "prompt"
             ],
-            "time": "2016-04-18T09:31:41+00:00"
+            "time": "2017-03-18T11:32:45+00:00"
         },
         {
             "name": "seld/jsonlint",
-            "version": "1.5.0",
+            "version": "1.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Seldaek/jsonlint.git",
-                "reference": "19495c181d6d53a0a13414154e52817e3b504189"
+                "reference": "791f8c594f300d246cdf01c6b3e1e19611e301d8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/19495c181d6d53a0a13414154e52817e3b504189",
-                "reference": "19495c181d6d53a0a13414154e52817e3b504189",
+                "url": "https://api.github.com/repos/Seldaek/jsonlint/zipball/791f8c594f300d246cdf01c6b3e1e19611e301d8",
+                "reference": "791f8c594f300d246cdf01c6b3e1e19611e301d8",
                 "shasum": ""
             },
             "require": {
                 "php": "^5.3 || ^7.0"
             },
+            "require-dev": {
+                "phpunit/phpunit": "^4.5"
+            },
             "bin": [
                 "bin/jsonlint"
             ],
@@ -1769,7 +1930,7 @@
                 "parser",
                 "validator"
             ],
-            "time": "2016-11-14T17:59:58+00:00"
+            "time": "2017-03-06T16:42:24+00:00"
         },
         {
             "name": "seld/phar-utils",
@@ -1817,16 +1978,16 @@
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "2.8.0",
+            "version": "2.8.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "86dd55a522238211f9f3631e3361703578941d9a"
+                "reference": "d7cf0d894e8aa4c73712ee4a331cc1eaa37cdc7d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/86dd55a522238211f9f3631e3361703578941d9a",
-                "reference": "86dd55a522238211f9f3631e3361703578941d9a",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/d7cf0d894e8aa4c73712ee4a331cc1eaa37cdc7d",
+                "reference": "d7cf0d894e8aa4c73712ee4a331cc1eaa37cdc7d",
                 "shasum": ""
             },
             "require": {
@@ -1891,20 +2052,20 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2017-02-02T03:30:00+00:00"
+            "time": "2017-03-01T22:17:45+00:00"
         },
         {
             "name": "symfony/console",
-            "version": "v3.2.4",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "0e5e6899f82230fcb1153bcaf0e106ffaa44b870"
+                "reference": "c30243cc51f726812be3551316b109a2f5deaf8d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/0e5e6899f82230fcb1153bcaf0e106ffaa44b870",
-                "reference": "0e5e6899f82230fcb1153bcaf0e106ffaa44b870",
+                "url": "https://api.github.com/repos/symfony/console/zipball/c30243cc51f726812be3551316b109a2f5deaf8d",
+                "reference": "c30243cc51f726812be3551316b109a2f5deaf8d",
                 "shasum": ""
             },
             "require": {
@@ -1954,20 +2115,20 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-02-16T14:07:22+00:00"
+            "time": "2017-04-04T14:33:42+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v3.2.4",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "9b98854cb45bc59d100b7d4cc4cf9e05f21026b9"
+                "reference": "56f613406446a4a0a031475cfd0a01751de22659"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/9b98854cb45bc59d100b7d4cc4cf9e05f21026b9",
-                "reference": "9b98854cb45bc59d100b7d4cc4cf9e05f21026b9",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/56f613406446a4a0a031475cfd0a01751de22659",
+                "reference": "56f613406446a4a0a031475cfd0a01751de22659",
                 "shasum": ""
             },
             "require": {
@@ -2011,20 +2172,20 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2017-02-16T16:34:18+00:00"
+            "time": "2017-03-28T21:38:24+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v3.2.4",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "a0c6ef2dc78d33b58d91d3a49f49797a184d06f4"
+                "reference": "64421e6479c4a8e60d790fb666bd520992861b66"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/a0c6ef2dc78d33b58d91d3a49f49797a184d06f4",
-                "reference": "a0c6ef2dc78d33b58d91d3a49f49797a184d06f4",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/64421e6479c4a8e60d790fb666bd520992861b66",
+                "reference": "64421e6479c4a8e60d790fb666bd520992861b66",
                 "shasum": ""
             },
             "require": {
@@ -2060,20 +2221,20 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2017-01-08T20:47:33+00:00"
+            "time": "2017-03-26T15:47:15+00:00"
         },
         {
             "name": "symfony/finder",
-            "version": "v3.2.4",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "8c71141cae8e2957946b403cc71a67213c0380d6"
+                "reference": "b20900ce5ea164cd9314af52725b0bb5a758217a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/8c71141cae8e2957946b403cc71a67213c0380d6",
-                "reference": "8c71141cae8e2957946b403cc71a67213c0380d6",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/b20900ce5ea164cd9314af52725b0bb5a758217a",
+                "reference": "b20900ce5ea164cd9314af52725b0bb5a758217a",
                 "shasum": ""
             },
             "require": {
@@ -2109,7 +2270,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2017-01-02T20:32:22+00:00"
+            "time": "2017-03-20T09:32:19+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -2172,16 +2333,16 @@
         },
         {
             "name": "symfony/process",
-            "version": "v3.2.4",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "0ab87c1e7570b3534a6e51eb4ca8e9f6d7327856"
+                "reference": "57fdaa55827ae14d617550ebe71a820f0a5e2282"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/0ab87c1e7570b3534a6e51eb4ca8e9f6d7327856",
-                "reference": "0ab87c1e7570b3534a6e51eb4ca8e9f6d7327856",
+                "url": "https://api.github.com/repos/symfony/process/zipball/57fdaa55827ae14d617550ebe71a820f0a5e2282",
+                "reference": "57fdaa55827ae14d617550ebe71a820f0a5e2282",
                 "shasum": ""
             },
             "require": {
@@ -2217,62 +2378,47 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2017-02-16T14:07:22+00:00"
+            "time": "2017-03-27T18:07:02+00:00"
         },
         {
-            "name": "symfony/yaml",
-            "version": "v3.2.4",
+            "name": "theseer/tokenizer",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/yaml.git",
-                "reference": "9724c684646fcb5387d579b4bfaa63ee0b0c64c8"
+                "url": "https://github.com/theseer/tokenizer.git",
+                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/9724c684646fcb5387d579b4bfaa63ee0b0c64c8",
-                "reference": "9724c684646fcb5387d579b4bfaa63ee0b0c64c8",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/cb2f008f3f05af2893a87208fe6a6c4985483f8b",
+                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b",
                 "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"
+                "ext-dom": "*",
+                "ext-tokenizer": "*",
+                "ext-xmlwriter": "*",
+                "php": "^7.0"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.2-dev"
-                }
-            },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\Yaml\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
+                "classmap": [
+                    "src/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "MIT"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
+                    "name": "Arne Blankerts",
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
                 }
             ],
-            "description": "Symfony Yaml Component",
-            "homepage": "https://symfony.com",
-            "time": "2017-02-16T22:46:52+00:00"
+            "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
+            "time": "2017-04-07T12:08:54+00:00"
         },
         {
             "name": "webmozart/assert",
diff --git a/test/_autoload.php b/test/_autoload.php
index 47f1c04..953c99f 100644
--- a/test/_autoload.php
+++ b/test/_autoload.php
@@ -7,4 +7,6 @@
 
 use PHPUnit\Framework\ExpectationFailedException;
 
-class_alias('PHPUnit_Framework_ExpectationFailedException', ExpectationFailedException::class);
+if (class_exists('PHPUnit_Framework_ExpectationFailedException')) {
+    class_alias('PHPUnit_Framework_ExpectationFailedException', ExpectationFailedException::class);
+}