diff --git a/composer.lock b/composer.lock
index 9793d6e..d3343a1 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,9 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "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",
         "This file is @generated automatically"
     ],
-    "hash": "ed9df8b872992035f068a7fe461a635a",
     "content-hash": "76036da3b5b55b91dbe1e1affa01bf9e",
     "packages": [
         {
@@ -59,7 +58,7 @@
                 "class",
                 "preload"
             ],
-            "time": "2016-09-16 12:50:15"
+            "time": "2016-09-16T12:50:15+00:00"
         },
         {
             "name": "dnoegel/php-xdg-base-dir",
@@ -92,7 +91,7 @@
                 "MIT"
             ],
             "description": "implementation of xdg base directory specification for php",
-            "time": "2014-10-24 07:27:01"
+            "time": "2014-10-24T07:27:01+00:00"
         },
         {
             "name": "doctrine/inflector",
@@ -159,7 +158,7 @@
                 "singularize",
                 "string"
             ],
-            "time": "2015-11-06 14:35:42"
+            "time": "2015-11-06T14:35:42+00:00"
         },
         {
             "name": "jakub-onderka/php-console-color",
@@ -202,7 +201,7 @@
                     "homepage": "http://www.acci.cz"
                 }
             ],
-            "time": "2014-04-08 15:00:19"
+            "time": "2014-04-08T15:00:19+00:00"
         },
         {
             "name": "jakub-onderka/php-console-highlighter",
@@ -246,7 +245,7 @@
                     "homepage": "http://www.acci.cz/"
                 }
             ],
-            "time": "2015-04-20 18:58:01"
+            "time": "2015-04-20T18:58:01+00:00"
         },
         {
             "name": "jeremeamia/SuperClosure",
@@ -304,7 +303,7 @@
                 "serialize",
                 "tokenizer"
             ],
-            "time": "2016-12-07 09:37:55"
+            "time": "2016-12-07T09:37:55+00:00"
         },
         {
             "name": "laravel/framework",
@@ -432,7 +431,7 @@
                 "framework",
                 "laravel"
             ],
-            "time": "2016-12-15 18:03:17"
+            "time": "2016-12-15T18:03:17+00:00"
         },
         {
             "name": "league/flysystem",
@@ -515,7 +514,7 @@
                 "sftp",
                 "storage"
             ],
-            "time": "2016-10-19 20:38:46"
+            "time": "2016-10-19T20:38:46+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -593,7 +592,7 @@
                 "logging",
                 "psr-3"
             ],
-            "time": "2016-11-26 00:15:39"
+            "time": "2016-11-26T00:15:39+00:00"
         },
         {
             "name": "mtdowling/cron-expression",
@@ -637,7 +636,7 @@
                 "cron",
                 "schedule"
             ],
-            "time": "2016-01-26 21:23:30"
+            "time": "2016-01-26T21:23:30+00:00"
         },
         {
             "name": "nesbot/carbon",
@@ -684,7 +683,7 @@
                 "datetime",
                 "time"
             ],
-            "time": "2015-11-04 20:07:17"
+            "time": "2015-11-04T20:07:17+00:00"
         },
         {
             "name": "nikic/php-parser",
@@ -735,7 +734,7 @@
                 "parser",
                 "php"
             ],
-            "time": "2016-12-06 11:30:35"
+            "time": "2016-12-06T11:30:35+00:00"
         },
         {
             "name": "paragonie/random_compat",
@@ -783,7 +782,7 @@
                 "pseudorandom",
                 "random"
             ],
-            "time": "2016-11-07 23:38:38"
+            "time": "2016-11-07T23:38:38+00:00"
         },
         {
             "name": "psr/log",
@@ -830,7 +829,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2016-10-10 12:19:37"
+            "time": "2016-10-10T12:19:37+00:00"
         },
         {
             "name": "psy/psysh",
@@ -903,7 +902,7 @@
                 "interactive",
                 "shell"
             ],
-            "time": "2016-12-07 17:15:07"
+            "time": "2016-12-07T17:15:07+00:00"
         },
         {
             "name": "ramsey/uuid",
@@ -985,27 +984,28 @@
                 "identifier",
                 "uuid"
             ],
-            "time": "2016-11-22 19:21:44"
+            "time": "2016-11-22T19:21:44+00:00"
         },
         {
             "name": "swiftmailer/swiftmailer",
-            "version": "v5.4.4",
+            "version": "v5.4.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "545ce9136690cea74f98f86fbb9c92dd9ab1a756"
+                "reference": "181b89f18a90f8925ef805f950d47a7190e9b950"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/545ce9136690cea74f98f86fbb9c92dd9ab1a756",
-                "reference": "545ce9136690cea74f98f86fbb9c92dd9ab1a756",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/181b89f18a90f8925ef805f950d47a7190e9b950",
+                "reference": "181b89f18a90f8925ef805f950d47a7190e9b950",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
             "require-dev": {
-                "mockery/mockery": "~0.9.1"
+                "mockery/mockery": "~0.9.1",
+                "symfony/phpunit-bridge": "~3.2"
             },
             "type": "library",
             "extra": {
@@ -1032,13 +1032,18 @@
                 }
             ],
             "description": "Swiftmailer, free feature-rich PHP mailer",
-            "homepage": "http://swiftmailer.org",
+            "homepage": "https://swiftmailer.symfony.com",
             "keywords": [
                 "email",
                 "mail",
                 "mailer"
             ],
-            "time": "2016-11-24 01:01:23"
+            "support": {
+                "issues": "https://github.com/swiftmailer/swiftmailer/issues",
+                "source": "https://github.com/swiftmailer/swiftmailer/tree/v5.4.12"
+            },
+            "abandoned": "symfony/mailer",
+            "time": "2018-07-31T09:26:32+00:00"
         },
         {
             "name": "symfony/console",
@@ -1099,7 +1104,7 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2016-12-08 14:58:14"
+            "time": "2016-12-08T14:58:14+00:00"
         },
         {
             "name": "symfony/debug",
@@ -1156,7 +1161,7 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2016-11-15 12:55:20"
+            "time": "2016-11-15T12:55:20+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
@@ -1216,7 +1221,7 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2016-10-13 06:29:04"
+            "time": "2016-10-13T06:29:04+00:00"
         },
         {
             "name": "symfony/finder",
@@ -1265,7 +1270,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2016-12-13 09:38:21"
+            "time": "2016-12-13T09:38:21+00:00"
         },
         {
             "name": "symfony/http-foundation",
@@ -1318,7 +1323,7 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-11-27 04:21:07"
+            "time": "2016-11-27T04:21:07+00:00"
         },
         {
             "name": "symfony/http-kernel",
@@ -1400,7 +1405,7 @@
             ],
             "description": "Symfony HttpKernel Component",
             "homepage": "https://symfony.com",
-            "time": "2016-12-13 12:52:10"
+            "time": "2016-12-13T12:52:10+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -1459,7 +1464,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-11-14 01:06:16"
+            "time": "2016-11-14T01:06:16+00:00"
         },
         {
             "name": "symfony/polyfill-php56",
@@ -1515,7 +1520,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-11-14 01:06:16"
+            "time": "2016-11-14T01:06:16+00:00"
         },
         {
             "name": "symfony/polyfill-util",
@@ -1567,7 +1572,7 @@
                 "polyfill",
                 "shim"
             ],
-            "time": "2016-11-14 01:06:16"
+            "time": "2016-11-14T01:06:16+00:00"
         },
         {
             "name": "symfony/process",
@@ -1616,7 +1621,7 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2016-11-24 01:08:05"
+            "time": "2016-11-24T01:08:05+00:00"
         },
         {
             "name": "symfony/routing",
@@ -1691,7 +1696,7 @@
                 "uri",
                 "url"
             ],
-            "time": "2016-11-25 12:27:14"
+            "time": "2016-11-25T12:27:14+00:00"
         },
         {
             "name": "symfony/translation",
@@ -1755,7 +1760,7 @@
             ],
             "description": "Symfony Translation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-11-18 21:15:08"
+            "time": "2016-11-18T21:15:08+00:00"
         },
         {
             "name": "symfony/var-dumper",
@@ -1818,7 +1823,7 @@
                 "debug",
                 "dump"
             ],
-            "time": "2016-12-08 14:58:14"
+            "time": "2016-12-08T14:58:14+00:00"
         },
         {
             "name": "vlucas/phpdotenv",
@@ -1868,7 +1873,7 @@
                 "env",
                 "environment"
             ],
-            "time": "2016-09-01 10:05:43"
+            "time": "2016-09-01T10:05:43+00:00"
         }
     ],
     "packages-dev": [
@@ -1924,7 +1929,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14 21:17:01"
+            "time": "2015-06-14T21:17:01+00:00"
         },
         {
             "name": "fzaninotto/faker",
@@ -1972,7 +1977,7 @@
                 "faker",
                 "fixtures"
             ],
-            "time": "2016-04-29 12:21:54"
+            "time": "2016-04-29T12:21:54+00:00"
         },
         {
             "name": "hamcrest/hamcrest-php",
@@ -2017,7 +2022,7 @@
             "keywords": [
                 "test"
             ],
-            "time": "2015-05-11 14:41:42"
+            "time": "2015-05-11T14:41:42+00:00"
         },
         {
             "name": "mockery/mockery",
@@ -2082,7 +2087,7 @@
                 "test double",
                 "testing"
             ],
-            "time": "2016-09-30 12:09:40"
+            "time": "2016-09-30T12:09:40+00:00"
         },
         {
             "name": "myclabs/deep-copy",
@@ -2124,7 +2129,7 @@
                 "object",
                 "object graph"
             ],
-            "time": "2016-10-31 17:19:45"
+            "time": "2016-10-31T17:19:45+00:00"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -2178,7 +2183,7 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2015-12-27 11:43:31"
+            "time": "2015-12-27T11:43:31+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
@@ -2223,7 +2228,7 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2016-09-30 07:12:33"
+            "time": "2016-09-30T07:12:33+00:00"
         },
         {
             "name": "phpdocumentor/type-resolver",
@@ -2270,7 +2275,7 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "time": "2016-11-25 06:54:22"
+            "time": "2016-11-25T06:54:22+00:00"
         },
         {
             "name": "phpspec/prophecy",
@@ -2333,7 +2338,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2016-11-21 14:58:47"
+            "time": "2016-11-21T14:58:47+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -2396,7 +2401,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2016-11-28 16:00:31"
+            "time": "2016-11-28T16:00:31+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -2443,7 +2448,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2016-10-03 07:40:28"
+            "time": "2016-10-03T07:40:28+00:00"
         },
         {
             "name": "phpunit/php-text-template",
@@ -2484,7 +2489,7 @@
             "keywords": [
                 "template"
             ],
-            "time": "2015-06-21 13:50:34"
+            "time": "2015-06-21T13:50:34+00:00"
         },
         {
             "name": "phpunit/php-timer",
@@ -2528,7 +2533,7 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2016-05-12 18:03:57"
+            "time": "2016-05-12T18:03:57+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
@@ -2577,7 +2582,7 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2016-11-15 14:06:22"
+            "time": "2016-11-15T14:06:22+00:00"
         },
         {
             "name": "phpunit/phpunit",
@@ -2659,7 +2664,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2016-12-13 16:19:44"
+            "time": "2016-12-13T16:19:44+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
@@ -2718,7 +2723,7 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2016-12-08 20:27:08"
+            "time": "2016-12-08T20:27:08+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -2763,7 +2768,7 @@
             ],
             "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",
@@ -2827,7 +2832,7 @@
                 "compare",
                 "equality"
             ],
-            "time": "2016-11-19 09:18:40"
+            "time": "2016-11-19T09:18:40+00:00"
         },
         {
             "name": "sebastian/diff",
@@ -2879,7 +2884,7 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2015-12-08 07:14:41"
+            "time": "2015-12-08T07:14:41+00:00"
         },
         {
             "name": "sebastian/environment",
@@ -2929,7 +2934,7 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2016-11-26 07:53:53"
+            "time": "2016-11-26T07:53:53+00:00"
         },
         {
             "name": "sebastian/exporter",
@@ -2996,7 +3001,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2016-11-19 08:54:04"
+            "time": "2016-11-19T08:54:04+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -3047,7 +3052,7 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2015-10-12 03:26:01"
+            "time": "2015-10-12T03:26:01+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
@@ -3093,7 +3098,7 @@
             ],
             "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",
@@ -3146,7 +3151,7 @@
             ],
             "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",
@@ -3188,7 +3193,7 @@
             ],
             "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",
@@ -3231,7 +3236,7 @@
             ],
             "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/css-selector",
@@ -3284,7 +3289,7 @@
             ],
             "description": "Symfony CssSelector Component",
             "homepage": "https://symfony.com",
-            "time": "2016-11-03 08:04:31"
+            "time": "2016-11-03T08:04:31+00:00"
         },
         {
             "name": "symfony/dom-crawler",
@@ -3340,7 +3345,7 @@
             ],
             "description": "Symfony DomCrawler Component",
             "homepage": "https://symfony.com",
-            "time": "2016-12-10 14:24:45"
+            "time": "2016-12-10T14:24:45+00:00"
         },
         {
             "name": "symfony/yaml",
@@ -3395,7 +3400,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2016-12-10 10:07:06"
+            "time": "2016-12-10T10:07:06+00:00"
         },
         {
             "name": "webmozart/assert",
@@ -3445,7 +3450,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23 20:04:58"
+            "time": "2016-11-23T20:04:58+00:00"
         }
     ],
     "aliases": [],
@@ -3456,5 +3461,6 @@
     "platform": {
         "php": ">=5.6.4"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
 }