diff --git a/api/composer.json b/api/composer.json
index ec69991a3..8dbb238af 100644
--- a/api/composer.json
+++ b/api/composer.json
@@ -8,5 +8,10 @@
         "vlucas/phpdotenv": "^3.0.0",
         "codeception/codeception": "^3.1",
         "codeception/phpbuiltinserver": "^1.5"
+    },
+    "config": {
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+            "php": "7.1"
+        }
     }
 }
diff --git a/api/composer.lock b/api/composer.lock
index 5d23fea7c..3eb64e0e1 100644
--- a/api/composer.lock
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@@ -4,7 +4,7 @@
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+    "content-hash": "d797caeae0233c705035800552e7714b",
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@@ -234,20 +234,23 @@
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-                },
                 {
                     "name": "Andrew Smith",
                     "email": "a.smith@silentworks.co.uk",
                     "homepage": "http://silentworks.co.uk"
+                },
+                {
+                    "name": "Rob Allen",
+                    "email": "rob@akrabat.com",
+                    "homepage": "http://akrabat.com"
+                },
+                {
+                    "name": "Gabriel Manricks",
+                    "email": "gmanricks@me.com",
+                    "homepage": "http://gabrielmanricks.com"
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@@ -301,7 +304,7 @@
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@@ -574,31 +578,33 @@
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@@ -623,25 +629,25 @@
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-            "time": "2017-07-22T11:58:36+00:00"
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@@ -688,7 +694,7 @@
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@@ -733,27 +739,28 @@
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@@ -765,12 +772,12 @@
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-                ],
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@@ -794,7 +801,7 @@
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@@ -849,33 +856,37 @@
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@@ -912,7 +923,7 @@
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@@ -1465,16 +1476,16 @@
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@@ -1716,41 +1725,40 @@
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@@ -1847,8 +1856,8 @@
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@@ -1876,7 +1885,7 @@
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@@ -2034,16 +2043,16 @@
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+                "reference": "29cffc38a38f2a8ed7e494c9cea2f890a40c2359",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3",
+                "php": "^5.5.9|>=7.0.8",
                 "symfony/polyfill-ctype": "~1.8",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "require-dev": {
-                "symfony/css-selector": "~3.4|~4.0"
+                "symfony/css-selector": "~2.8|~3.0|~4.0"
             },
             "suggest": {
                 "symfony/css-selector": ""
@@ -3098,7 +3142,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.2-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -3125,35 +3169,34 @@
             ],
             "description": "Symfony DomCrawler Component",
             "homepage": "https://symfony.com",
-            "time": "2019-02-23T15:17:42+00:00"
+            "time": "2019-08-30T17:42:32+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v4.2.4",
+            "version": "v3.4.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "3354d2e6af986dd71f68b4e5cf4a933ab58697fb"
+                "reference": "3e922c4c3430b9de624e8a285dada5e61e230959"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/3354d2e6af986dd71f68b4e5cf4a933ab58697fb",
-                "reference": "3354d2e6af986dd71f68b4e5cf4a933ab58697fb",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/3e922c4c3430b9de624e8a285dada5e61e230959",
+                "reference": "3e922c4c3430b9de624e8a285dada5e61e230959",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3",
-                "symfony/contracts": "^1.0"
+                "php": "^5.5.9|>=7.0.8"
             },
             "conflict": {
-                "symfony/dependency-injection": "<3.4"
+                "symfony/dependency-injection": "<3.3"
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~3.4|~4.0",
-                "symfony/dependency-injection": "~3.4|~4.0",
-                "symfony/expression-language": "~3.4|~4.0",
-                "symfony/stopwatch": "~3.4|~4.0"
+                "symfony/config": "~2.8|~3.0|~4.0",
+                "symfony/dependency-injection": "~3.3|~4.0",
+                "symfony/expression-language": "~2.8|~3.0|~4.0",
+                "symfony/stopwatch": "~2.8|~3.0|~4.0"
             },
             "suggest": {
                 "symfony/dependency-injection": "",
@@ -3162,7 +3205,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.2-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -3189,29 +3232,29 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2019-02-23T15:17:42+00:00"
+            "time": "2019-08-23T08:05:57+00:00"
         },
         {
             "name": "symfony/finder",
-            "version": "v4.2.4",
+            "version": "v3.4.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "267b7002c1b70ea80db0833c3afe05f0fbde580a"
+                "reference": "2b6a666d6ff7fb65d10b97d817c8e7930944afb9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/267b7002c1b70ea80db0833c3afe05f0fbde580a",
-                "reference": "267b7002c1b70ea80db0833c3afe05f0fbde580a",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/2b6a666d6ff7fb65d10b97d817c8e7930944afb9",
+                "reference": "2b6a666d6ff7fb65d10b97d817c8e7930944afb9",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
+                "php": "^5.5.9|>=7.0.8"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.2-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -3238,20 +3281,20 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2019-02-23T15:42:05+00:00"
+            "time": "2019-09-01T21:32:23+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.11.0",
+            "version": "v1.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "82ebae02209c21113908c229e9883c419720738a"
+                "reference": "550ebaac289296ce228a706d0867afc34687e3f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/82ebae02209c21113908c229e9883c419720738a",
-                "reference": "82ebae02209c21113908c229e9883c419720738a",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/550ebaac289296ce228a706d0867afc34687e3f4",
+                "reference": "550ebaac289296ce228a706d0867afc34687e3f4",
                 "shasum": ""
             },
             "require": {
@@ -3263,7 +3306,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.11-dev"
+                    "dev-master": "1.12-dev"
                 }
             },
             "autoload": {
@@ -3279,13 +3322,13 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                },
                 {
                     "name": "Gert de Pagter",
                     "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
                 }
             ],
             "description": "Symfony polyfill for ctype functions",
@@ -3296,20 +3339,20 @@
                 "polyfill",
                 "portable"
             ],
-            "time": "2019-02-06T07:57:58+00:00"
+            "time": "2019-08-06T08:03:45+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.10.0",
+            "version": "v1.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "c79c051f5b3a46be09205c73b80b346e4153e494"
+                "reference": "b42a2f66e8f1b15ccf25652c3424265923eb4f17"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/c79c051f5b3a46be09205c73b80b346e4153e494",
-                "reference": "c79c051f5b3a46be09205c73b80b346e4153e494",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/b42a2f66e8f1b15ccf25652c3424265923eb4f17",
+                "reference": "b42a2f66e8f1b15ccf25652c3424265923eb4f17",
                 "shasum": ""
             },
             "require": {
@@ -3321,7 +3364,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.9-dev"
+                    "dev-master": "1.12-dev"
                 }
             },
             "autoload": {
@@ -3355,29 +3398,29 @@
                 "portable",
                 "shim"
             ],
-            "time": "2018-09-21T13:07:52+00:00"
+            "time": "2019-08-06T08:03:45+00:00"
         },
         {
             "name": "symfony/process",
-            "version": "v4.2.4",
+            "version": "v3.4.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "6c05edb11fbeff9e2b324b4270ecb17911a8b7ad"
+                "reference": "344dc588b163ff58274f1769b90b75237f32ed16"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/6c05edb11fbeff9e2b324b4270ecb17911a8b7ad",
-                "reference": "6c05edb11fbeff9e2b324b4270ecb17911a8b7ad",
+                "url": "https://api.github.com/repos/symfony/process/zipball/344dc588b163ff58274f1769b90b75237f32ed16",
+                "reference": "344dc588b163ff58274f1769b90b75237f32ed16",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
+                "php": "^5.5.9|>=7.0.8"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.2-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -3404,24 +3447,24 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2019-01-24T22:05:03+00:00"
+            "time": "2019-09-25T14:09:38+00:00"
         },
         {
             "name": "symfony/yaml",
-            "version": "v4.2.4",
+            "version": "v3.4.32",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "761fa560a937fd7686e5274ff89dcfa87a5047df"
+                "reference": "768f817446da74a776a31eea335540f9dcb53942"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/761fa560a937fd7686e5274ff89dcfa87a5047df",
-                "reference": "761fa560a937fd7686e5274ff89dcfa87a5047df",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/768f817446da74a776a31eea335540f9dcb53942",
+                "reference": "768f817446da74a776a31eea335540f9dcb53942",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3",
+                "php": "^5.5.9|>=7.0.8",
                 "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
@@ -3436,7 +3479,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.2-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -3463,20 +3506,20 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2019-02-23T15:17:42+00:00"
+            "time": "2019-09-10T10:38:46+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.1.0",
+            "version": "1.1.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b"
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/cb2f008f3f05af2893a87208fe6a6c4985483f8b",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
                 "shasum": ""
             },
             "require": {
@@ -3503,20 +3546,20 @@
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2017-04-07T12:08:54+00:00"
+            "time": "2019-06-13T22:48:21+00:00"
         },
         {
             "name": "vlucas/phpdotenv",
-            "version": "v3.3.3",
+            "version": "v3.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vlucas/phpdotenv.git",
-                "reference": "dbcc609971dd9b55f48b8008b553d79fd372ddde"
+                "reference": "1bdf24f065975594f6a117f0f1f6cabf1333b156"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/dbcc609971dd9b55f48b8008b553d79fd372ddde",
-                "reference": "dbcc609971dd9b55f48b8008b553d79fd372ddde",
+                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/1bdf24f065975594f6a117f0f1f6cabf1333b156",
+                "reference": "1bdf24f065975594f6a117f0f1f6cabf1333b156",
                 "shasum": ""
             },
             "require": {
@@ -3525,12 +3568,12 @@
                 "symfony/polyfill-ctype": "^1.9"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8.35 || ^5.0 || ^6.0"
+                "phpunit/phpunit": "^4.8.35 || ^5.0 || ^6.0 || ^7.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.3-dev"
+                    "dev-master": "3.6-dev"
                 }
             },
             "autoload": {
@@ -3543,10 +3586,15 @@
                 "BSD-3-Clause"
             ],
             "authors": [
+                {
+                    "name": "Graham Campbell",
+                    "email": "graham@alt-three.com",
+                    "homepage": "https://gjcampbell.co.uk/"
+                },
                 {
                     "name": "Vance Lucas",
                     "email": "vance@vancelucas.com",
-                    "homepage": "http://www.vancelucas.com"
+                    "homepage": "https://vancelucas.com/"
                 }
             ],
             "description": "Loads environment variables from `.env` to `getenv()`, `$_ENV` and `$_SERVER` automagically.",
@@ -3555,20 +3603,20 @@
                 "env",
                 "environment"
             ],
-            "time": "2019-03-06T09:39:45+00:00"
+            "time": "2019-09-10T21:37:39+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.4.0",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9"
+                "reference": "88e6d84706d09a236046d686bbea96f07b3a34f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/83e253c8e0be5b0257b881e1827274667c5c17a9",
-                "reference": "83e253c8e0be5b0257b881e1827274667c5c17a9",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/88e6d84706d09a236046d686bbea96f07b3a34f4",
+                "reference": "88e6d84706d09a236046d686bbea96f07b3a34f4",
                 "shasum": ""
             },
             "require": {
@@ -3576,8 +3624,7 @@
                 "symfony/polyfill-ctype": "^1.8"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
+                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
             },
             "type": "library",
             "extra": {
@@ -3606,7 +3653,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2018-12-25T11:19:39+00:00"
+            "time": "2019-08-24T08:43:50+00:00"
         }
     ],
     "aliases": [],
@@ -3617,5 +3664,8 @@
     "platform": {
         "php": "^7.1"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "platform-overrides": {
+        "php": "7.1"
+    }
 }
diff --git a/api/tests/api/CreateAnotherUserCept.php b/api/tests/api/CreateAnotherUserCept.php
index f6b1f9ed5..572083327 100644
--- a/api/tests/api/CreateAnotherUserCept.php
+++ b/api/tests/api/CreateAnotherUserCept.php
@@ -16,7 +16,7 @@
 $I->wantTo('create a user');
 $I->sendPOST('/users', $userJson);
 $I->seeResponseCodeIs(200);
-$I->seeHttpHeader('Content-Type', 'application/json;charset=utf-8');
+$I->seeHttpHeader('Content-Type', 'application/json');
 $I->seeHttpHeader('Expires', '-1');
 $I->seeResponseIsJson();
 $I->seeResponseJsonMatchesJsonPath('user.id');
diff --git a/api/tests/api/CreatePollCept.php b/api/tests/api/CreatePollCept.php
index f288cd227..6969b977e 100644
--- a/api/tests/api/CreatePollCept.php
+++ b/api/tests/api/CreatePollCept.php
@@ -6,7 +6,7 @@
 $I->wantTo('create a poll');
 $I->sendPOST('/polls', $pollJson);
 $I->seeResponseCodeIs(200);
-$I->seeHttpHeader('Content-Type', 'application/json;charset=utf-8');
+$I->seeHttpHeader('Content-Type', 'application/json');
 $I->seeHttpHeader('Expires', '-1');
 $I->seeResponseIsJson();
 $I->seeResponseJsonMatchesJsonPath('poll.id');
diff --git a/api/tests/api/CreateUserCept.php b/api/tests/api/CreateUserCept.php
index a0dac369d..3eded57f0 100644
--- a/api/tests/api/CreateUserCept.php
+++ b/api/tests/api/CreateUserCept.php
@@ -12,7 +12,7 @@
 $I->wantTo('create a user');
 $I->sendPOST('/users', $userJson);
 $I->seeResponseCodeIs(200);
-$I->seeHttpHeader('Content-Type', 'application/json;charset=utf-8');
+$I->seeHttpHeader('Content-Type', 'application/json');
 $I->seeHttpHeader('Expires', '-1');
 $I->seeResponseIsJson();
 $I->seeResponseJsonMatchesJsonPath('user.id');
diff --git a/api/tests/api/GetLegacyPollWithUsersCept.php b/api/tests/api/GetLegacyPollWithUsersCept.php
index 5ef285816..542d33001 100644
--- a/api/tests/api/GetLegacyPollWithUsersCept.php
+++ b/api/tests/api/GetLegacyPollWithUsersCept.php
@@ -17,7 +17,7 @@
 $I->wantTo('get an existing legacy (v0.3.0) poll with users');
 $I->sendGET('/polls/' . $pollId);
 $I->seeResponseCodeIs(200);
-$I->seeHttpHeader('Content-Type', 'application/json;charset=utf-8');
+$I->seeHttpHeader('Content-Type', 'application/json');
 $I->seeHttpHeader('Expires', '-1');
 $I->seeResponseIsJson();
 
diff --git a/api/tests/api/GetPollCept.php b/api/tests/api/GetPollCept.php
index c3960f031..fc6f5d1a2 100644
--- a/api/tests/api/GetPollCept.php
+++ b/api/tests/api/GetPollCept.php
@@ -9,7 +9,7 @@
 $I->wantTo('get an existing poll');
 $I->sendGET('/polls/' . $pollId);
 $I->seeResponseCodeIs(200);
-$I->seeHttpHeader('Content-Type', 'application/json;charset=utf-8');
+$I->seeHttpHeader('Content-Type', 'application/json');
 $I->seeHttpHeader('Expires', '-1');
 $I->seeResponseIsJson();
 
diff --git a/api/tests/api/GetPollWithUsersCept.php b/api/tests/api/GetPollWithUsersCept.php
index b1ce424ce..39d36bf63 100644
--- a/api/tests/api/GetPollWithUsersCept.php
+++ b/api/tests/api/GetPollWithUsersCept.php
@@ -21,7 +21,7 @@
 $I->wantTo('get an existing poll');
 $I->sendGET('/polls/' . $pollId);
 $I->seeResponseCodeIs(200);
-$I->seeHttpHeader('Content-Type', 'application/json;charset=utf-8');
+$I->seeHttpHeader('Content-Type', 'application/json');
 $I->seeHttpHeader('Expires', '-1');
 $I->seeResponseIsJson();