diff --git a/composer.lock b/composer.lock
index 8e3de74..9220343 100644
--- a/composer.lock
+++ b/composer.lock
@@ -891,48 +891,6 @@
             "time": "2016-06-24 23:00:38"
         },
         {
-            "name": "ircmaxell/password-compat",
-            "version": "v1.0.4",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/ircmaxell/password_compat.git",
-                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/ircmaxell/password_compat/zipball/5c5cde8822a69545767f7c7f3058cb15ff84614c",
-                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c",
-                "shasum": ""
-            },
-            "require-dev": {
-                "phpunit/phpunit": "4.*"
-            },
-            "type": "library",
-            "autoload": {
-                "files": [
-                    "lib/password.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Anthony Ferrara",
-                    "email": "ircmaxell@php.net",
-                    "homepage": "http://blog.ircmaxell.com"
-                }
-            ],
-            "description": "A compatibility library for the proposed simplified password hashing algorithm: https://wiki.php.net/rfc/password_hash",
-            "homepage": "https://github.com/ircmaxell/password_compat",
-            "keywords": [
-                "hashing",
-                "password"
-            ],
-            "time": "2014-11-20 16:49:30"
-        },
-        {
             "name": "masterminds/html5",
             "version": "2.2.1",
             "source": {
@@ -1242,29 +1200,32 @@
         },
         {
             "name": "symfony/class-loader",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/class-loader.git",
-                "reference": "7d362c22710980730d46a5d039e788946a2938cb"
+                "reference": "bcb072aba46ddf3b1a496438c63be6be647739aa"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/class-loader/zipball/7d362c22710980730d46a5d039e788946a2938cb",
-                "reference": "7d362c22710980730d46a5d039e788946a2938cb",
+                "url": "https://api.github.com/repos/symfony/class-loader/zipball/bcb072aba46ddf3b1a496438c63be6be647739aa",
+                "reference": "bcb072aba46ddf3b1a496438c63be6be647739aa",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
-                "symfony/polyfill-apcu": "~1.1"
+                "php": ">=5.5.9"
             },
             "require-dev": {
-                "symfony/finder": "~2.0,>=2.0.5|~3.0.0"
+                "symfony/finder": "~2.8|~3.0",
+                "symfony/polyfill-apcu": "~1.1"
+            },
+            "suggest": {
+                "symfony/polyfill-apcu": "For using ApcClassLoader on HHVM"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1291,30 +1252,31 @@
             ],
             "description": "Symfony ClassLoader Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-10 19:33:53"
+            "time": "2016-09-06 23:30:54"
         },
         {
             "name": "symfony/console",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "9a5aef5fc0d4eff86853d44202b02be8d5a20154"
+                "reference": "c99da1119ae61e15de0e4829196b9fba6f73d065"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/9a5aef5fc0d4eff86853d44202b02be8d5a20154",
-                "reference": "9a5aef5fc0d4eff86853d44202b02be8d5a20154",
+                "url": "https://api.github.com/repos/symfony/console/zipball/c99da1119ae61e15de0e4829196b9fba6f73d065",
+                "reference": "c99da1119ae61e15de0e4829196b9fba6f73d065",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
+                "php": ">=5.5.9",
+                "symfony/debug": "~2.8|~3.0",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/event-dispatcher": "~2.1|~3.0.0",
-                "symfony/process": "~2.1|~3.0.0"
+                "symfony/event-dispatcher": "~2.8|~3.0",
+                "symfony/process": "~2.8|~3.0"
             },
             "suggest": {
                 "psr/log": "For using the console logger",
@@ -1324,7 +1286,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1351,43 +1313,46 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-17 09:19:04"
+            "time": "2016-10-06 01:44:51"
         },
         {
             "name": "symfony/debug",
-            "version": "v2.7.6",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "fb9e6887db716939f41af0ba8ef38a1582eb501b"
+                "reference": "e2b3f74a67fc928adc3c1b9027f73e1bc01190a8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/fb9e6887db716939f41af0ba8ef38a1582eb501b",
-                "reference": "fb9e6887db716939f41af0ba8ef38a1582eb501b",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/e2b3f74a67fc928adc3c1b9027f73e1bc01190a8",
+                "reference": "e2b3f74a67fc928adc3c1b9027f73e1bc01190a8",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
+                "php": ">=5.5.9",
                 "psr/log": "~1.0"
             },
             "conflict": {
                 "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
             },
             "require-dev": {
-                "symfony/class-loader": "~2.2",
-                "symfony/http-kernel": "~2.3.24|~2.5.9|~2.6,>=2.6.2"
+                "symfony/class-loader": "~2.8|~3.0",
+                "symfony/http-kernel": "~2.8|~3.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.7-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
                     "Symfony\\Component\\Debug\\": ""
-                }
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -1405,42 +1370,40 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2015-10-11 09:39:48"
+            "time": "2016-09-06 11:02:40"
         },
         {
             "name": "symfony/dependency-injection",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dependency-injection.git",
-                "reference": "f7b4a498e679fa440b16facb934680a1527ed48c"
+                "reference": "c578891216090069cd6d2e573402e13e39b3ad5c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/f7b4a498e679fa440b16facb934680a1527ed48c",
-                "reference": "f7b4a498e679fa440b16facb934680a1527ed48c",
+                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/c578891216090069cd6d2e573402e13e39b3ad5c",
+                "reference": "c578891216090069cd6d2e573402e13e39b3ad5c",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
-            },
-            "conflict": {
-                "symfony/expression-language": "<2.6"
+                "php": ">=5.5.9"
             },
             "require-dev": {
-                "symfony/config": "~2.2|~3.0.0",
-                "symfony/expression-language": "~2.6|~3.0.0",
-                "symfony/yaml": "~2.1|~3.0.0"
+                "symfony/config": "~2.8|~3.0",
+                "symfony/expression-language": "~2.8|~3.0",
+                "symfony/yaml": "~2.8.7|~3.0.7|~3.1.1|~3.2"
             },
             "suggest": {
                 "symfony/config": "",
+                "symfony/expression-language": "For using expressions in service container configuration",
                 "symfony/proxy-manager-bridge": "Generate service proxies to lazy load them",
                 "symfony/yaml": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1467,28 +1430,28 @@
             ],
             "description": "Symfony DependencyInjection Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-21 07:27:21"
+            "time": "2016-10-24 15:52:44"
         },
         {
             "name": "symfony/dom-crawler",
-            "version": "v2.8.13",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dom-crawler.git",
-                "reference": "a94f3fe6f179d6453e5ed8188cf4bfdf933d85f4"
+                "reference": "59eee3c76eb89f21857798620ebdad7a05ad14f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dom-crawler/zipball/a94f3fe6f179d6453e5ed8188cf4bfdf933d85f4",
-                "reference": "a94f3fe6f179d6453e5ed8188cf4bfdf933d85f4",
+                "url": "https://api.github.com/repos/symfony/dom-crawler/zipball/59eee3c76eb89f21857798620ebdad7a05ad14f4",
+                "reference": "59eee3c76eb89f21857798620ebdad7a05ad14f4",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
+                "php": ">=5.5.9",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "require-dev": {
-                "symfony/css-selector": "~2.8|~3.0.0"
+                "symfony/css-selector": "~2.8|~3.0"
             },
             "suggest": {
                 "symfony/css-selector": ""
@@ -1496,7 +1459,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1523,31 +1486,31 @@
             ],
             "description": "Symfony DomCrawler Component",
             "homepage": "https://symfony.com",
-            "time": "2016-10-18 15:35:45"
+            "time": "2016-10-18 15:46:07"
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "47d2d8cade9b1c3987573d2943bb9352536cdb87"
+                "reference": "28b0832b2553ffb80cabef6a7a812ff1e670c0bc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/47d2d8cade9b1c3987573d2943bb9352536cdb87",
-                "reference": "47d2d8cade9b1c3987573d2943bb9352536cdb87",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/28b0832b2553ffb80cabef6a7a812ff1e670c0bc",
+                "reference": "28b0832b2553ffb80cabef6a7a812ff1e670c0bc",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.5.9"
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~2.0,>=2.0.5|~3.0.0",
-                "symfony/dependency-injection": "~2.6|~3.0.0",
-                "symfony/expression-language": "~2.6|~3.0.0",
-                "symfony/stopwatch": "~2.3|~3.0.0"
+                "symfony/config": "~2.8|~3.0",
+                "symfony/dependency-injection": "~2.8|~3.0",
+                "symfony/expression-language": "~2.8|~3.0",
+                "symfony/stopwatch": "~2.8|~3.0"
             },
             "suggest": {
                 "symfony/dependency-injection": "",
@@ -1556,7 +1519,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1583,35 +1546,33 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-07 14:04:32"
+            "time": "2016-10-13 06:28:43"
         },
         {
             "name": "symfony/http-foundation",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/http-foundation.git",
-                "reference": "06d6b2c755b2f34ce21e688b62072e9c625709c4"
+                "reference": "f21e5a8b88274b7720779aa88f9c02c6d6ec08d7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/06d6b2c755b2f34ce21e688b62072e9c625709c4",
-                "reference": "06d6b2c755b2f34ce21e688b62072e9c625709c4",
+                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/f21e5a8b88274b7720779aa88f9c02c6d6ec08d7",
+                "reference": "f21e5a8b88274b7720779aa88f9c02c6d6ec08d7",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
-                "symfony/polyfill-mbstring": "~1.1",
-                "symfony/polyfill-php54": "~1.0",
-                "symfony/polyfill-php55": "~1.0"
+                "php": ">=5.5.9",
+                "symfony/polyfill-mbstring": "~1.1"
             },
             "require-dev": {
-                "symfony/expression-language": "~2.4|~3.0.0"
+                "symfony/expression-language": "~2.8|~3.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1638,48 +1599,48 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-27 12:57:53"
+            "time": "2016-10-24 15:52:44"
         },
         {
             "name": "symfony/http-kernel",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/http-kernel.git",
-                "reference": "2c45576fee2eb228d4771342a05b0565e4711ba2"
+                "reference": "c235f1b13ba67012e283996a5427f22e2e04be14"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/http-kernel/zipball/2c45576fee2eb228d4771342a05b0565e4711ba2",
-                "reference": "2c45576fee2eb228d4771342a05b0565e4711ba2",
+                "url": "https://api.github.com/repos/symfony/http-kernel/zipball/c235f1b13ba67012e283996a5427f22e2e04be14",
+                "reference": "c235f1b13ba67012e283996a5427f22e2e04be14",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
+                "php": ">=5.5.9",
                 "psr/log": "~1.0",
-                "symfony/debug": "~2.6,>=2.6.2",
-                "symfony/event-dispatcher": "~2.6,>=2.6.7|~3.0.0",
-                "symfony/http-foundation": "~2.5,>=2.5.4|~3.0.0"
+                "symfony/debug": "~2.8|~3.0",
+                "symfony/event-dispatcher": "~2.8|~3.0",
+                "symfony/http-foundation": "~2.8.13|~3.1.6|~3.2"
             },
             "conflict": {
-                "symfony/config": "<2.7"
+                "symfony/config": "<2.8"
             },
             "require-dev": {
-                "symfony/browser-kit": "~2.3|~3.0.0",
-                "symfony/class-loader": "~2.1|~3.0.0",
-                "symfony/config": "~2.8",
-                "symfony/console": "~2.3|~3.0.0",
-                "symfony/css-selector": "~2.0,>=2.0.5|~3.0.0",
-                "symfony/dependency-injection": "~2.8|~3.0.0",
-                "symfony/dom-crawler": "~2.0,>=2.0.5|~3.0.0",
-                "symfony/expression-language": "~2.4|~3.0.0",
-                "symfony/finder": "~2.0,>=2.0.5|~3.0.0",
-                "symfony/process": "~2.0,>=2.0.5|~3.0.0",
-                "symfony/routing": "~2.8|~3.0.0",
-                "symfony/stopwatch": "~2.3|~3.0.0",
-                "symfony/templating": "~2.2|~3.0.0",
-                "symfony/translation": "~2.0,>=2.0.5|~3.0.0",
-                "symfony/var-dumper": "~2.6|~3.0.0"
+                "symfony/browser-kit": "~2.8|~3.0",
+                "symfony/class-loader": "~2.8|~3.0",
+                "symfony/config": "~2.8|~3.0",
+                "symfony/console": "~2.8|~3.0",
+                "symfony/css-selector": "~2.8|~3.0",
+                "symfony/dependency-injection": "~2.8|~3.0",
+                "symfony/dom-crawler": "~2.8|~3.0",
+                "symfony/expression-language": "~2.8|~3.0",
+                "symfony/finder": "~2.8|~3.0",
+                "symfony/process": "~2.8|~3.0",
+                "symfony/routing": "~2.8|~3.0",
+                "symfony/stopwatch": "~2.8|~3.0",
+                "symfony/templating": "~2.8|~3.0",
+                "symfony/translation": "~2.8|~3.0",
+                "symfony/var-dumper": "~2.8|~3.0"
             },
             "suggest": {
                 "symfony/browser-kit": "",
@@ -1693,7 +1654,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1720,73 +1681,20 @@
             ],
             "description": "Symfony HttpKernel Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-25 01:40:30"
-        },
-        {
-            "name": "symfony/polyfill-apcu",
-            "version": "v1.1.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/symfony/polyfill-apcu.git",
-                "reference": "0c901e4e65a2f7ece68f0fd249b56d6ad3adc214"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-apcu/zipball/0c901e4e65a2f7ece68f0fd249b56d6ad3adc214",
-                "reference": "0c901e4e65a2f7ece68f0fd249b56d6ad3adc214",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.3"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.1-dev"
-                }
-            },
-            "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Nicolas Grekas",
-                    "email": "p@tchwork.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                }
-            ],
-            "description": "Symfony polyfill backporting apcu_* functions to lower PHP versions",
-            "homepage": "https://symfony.com",
-            "keywords": [
-                "apcu",
-                "compatibility",
-                "polyfill",
-                "portable",
-                "shim"
-            ],
-            "time": "2016-03-03 16:49:40"
+            "time": "2016-10-27 02:38:31"
         },
         {
             "name": "symfony/polyfill-iconv",
-            "version": "v1.1.1",
+            "version": "v1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-iconv.git",
-                "reference": "08e3b8768d785ba7f271ef94906d50f7efe72ce8"
+                "reference": "b287e8554b1ffd9b5b20b5df940d906930ff4a10"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-iconv/zipball/08e3b8768d785ba7f271ef94906d50f7efe72ce8",
-                "reference": "08e3b8768d785ba7f271ef94906d50f7efe72ce8",
+                "url": "https://api.github.com/repos/symfony/polyfill-iconv/zipball/b287e8554b1ffd9b5b20b5df940d906930ff4a10",
+                "reference": "b287e8554b1ffd9b5b20b5df940d906930ff4a10",
                 "shasum": ""
             },
             "require": {
@@ -1798,7 +1706,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.1-dev"
+                    "dev-master": "1.2-dev"
                 }
             },
             "autoload": {
@@ -1832,20 +1740,20 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-02-26 11:31:02"
+            "time": "2016-05-18 14:26:46"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.1.0",
+            "version": "v1.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "1289d16209491b584839022f29257ad859b8532d"
+                "reference": "dff51f72b0706335131b00a7f49606168c582594"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/1289d16209491b584839022f29257ad859b8532d",
-                "reference": "1289d16209491b584839022f29257ad859b8532d",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/dff51f72b0706335131b00a7f49606168c582594",
+                "reference": "dff51f72b0706335131b00a7f49606168c582594",
                 "shasum": ""
             },
             "require": {
@@ -1857,7 +1765,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.1-dev"
+                    "dev-master": "1.2-dev"
                 }
             },
             "autoload": {
@@ -1891,143 +1799,29 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-01-20 09:13:37"
-        },
-        {
-            "name": "symfony/polyfill-php54",
-            "version": "v1.1.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/symfony/polyfill-php54.git",
-                "reference": "74663d5a2ff3c530c1bc0571500e0feec9094054"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php54/zipball/74663d5a2ff3c530c1bc0571500e0feec9094054",
-                "reference": "74663d5a2ff3c530c1bc0571500e0feec9094054",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.3"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.1-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php54\\": ""
-                },
-                "files": [
-                    "bootstrap.php"
-                ],
-                "classmap": [
-                    "Resources/stubs"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Nicolas Grekas",
-                    "email": "p@tchwork.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                }
-            ],
-            "description": "Symfony polyfill backporting some PHP 5.4+ features to lower PHP versions",
-            "homepage": "https://symfony.com",
-            "keywords": [
-                "compatibility",
-                "polyfill",
-                "portable",
-                "shim"
-            ],
-            "time": "2016-01-20 09:13:37"
-        },
-        {
-            "name": "symfony/polyfill-php55",
-            "version": "v1.1.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/symfony/polyfill-php55.git",
-                "reference": "b4f3f07d91702f8f926339fc4fcf81671d8c27e6"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php55/zipball/b4f3f07d91702f8f926339fc4fcf81671d8c27e6",
-                "reference": "b4f3f07d91702f8f926339fc4fcf81671d8c27e6",
-                "shasum": ""
-            },
-            "require": {
-                "ircmaxell/password-compat": "~1.0",
-                "php": ">=5.3.3"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.1-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Php55\\": ""
-                },
-                "files": [
-                    "bootstrap.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Nicolas Grekas",
-                    "email": "p@tchwork.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                }
-            ],
-            "description": "Symfony polyfill backporting some PHP 5.5+ features to lower PHP versions",
-            "homepage": "https://symfony.com",
-            "keywords": [
-                "compatibility",
-                "polyfill",
-                "portable",
-                "shim"
-            ],
-            "time": "2016-01-20 09:13:37"
+            "time": "2016-05-18 14:26:46"
         },
         {
             "name": "symfony/process",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "fb467471952ef5cf8497c029980e556b47545333"
+                "reference": "66de154ae86b1a07001da9fbffd620206e4faf94"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/fb467471952ef5cf8497c029980e556b47545333",
-                "reference": "fb467471952ef5cf8497c029980e556b47545333",
+                "url": "https://api.github.com/repos/symfony/process/zipball/66de154ae86b1a07001da9fbffd620206e4faf94",
+                "reference": "66de154ae86b1a07001da9fbffd620206e4faf94",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -2054,7 +1848,7 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-23 13:11:46"
+            "time": "2016-09-29 14:13:09"
         },
         {
             "name": "symfony/psr-http-message-bridge",
@@ -2112,32 +1906,32 @@
         },
         {
             "name": "symfony/routing",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/routing.git",
-                "reference": "d7d4a20cb55a90a06c0070d1a360e5ac606306ef"
+                "reference": "8edf62498a1a4c57ba317664a4b698339c10cdf6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/routing/zipball/d7d4a20cb55a90a06c0070d1a360e5ac606306ef",
-                "reference": "d7d4a20cb55a90a06c0070d1a360e5ac606306ef",
+                "url": "https://api.github.com/repos/symfony/routing/zipball/8edf62498a1a4c57ba317664a4b698339c10cdf6",
+                "reference": "8edf62498a1a4c57ba317664a4b698339c10cdf6",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.5.9"
             },
             "conflict": {
-                "symfony/config": "<2.7"
+                "symfony/config": "<2.8"
             },
             "require-dev": {
                 "doctrine/annotations": "~1.0",
                 "doctrine/common": "~2.2",
                 "psr/log": "~1.0",
-                "symfony/config": "~2.7|~3.0.0",
-                "symfony/expression-language": "~2.4|~3.0.0",
-                "symfony/http-foundation": "~2.3|~3.0.0",
-                "symfony/yaml": "~2.0,>=2.0.5|~3.0.0"
+                "symfony/config": "~2.8|~3.0",
+                "symfony/expression-language": "~2.8|~3.0",
+                "symfony/http-foundation": "~2.8|~3.0",
+                "symfony/yaml": "~2.8|~3.0"
             },
             "suggest": {
                 "doctrine/annotations": "For using the annotation loader",
@@ -2150,7 +1944,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -2183,44 +1977,53 @@
                 "uri",
                 "url"
             ],
-            "time": "2016-03-23 13:11:46"
+            "time": "2016-08-16 14:58:24"
         },
         {
             "name": "symfony/serializer",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/serializer.git",
-                "reference": "e848750ceffdc4af374844c338c299627a98196a"
+                "reference": "2d2b0866397b870e307ca5f9923c89b1c8c25a42"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/serializer/zipball/e848750ceffdc4af374844c338c299627a98196a",
-                "reference": "e848750ceffdc4af374844c338c299627a98196a",
+                "url": "https://api.github.com/repos/symfony/serializer/zipball/2d2b0866397b870e307ca5f9923c89b1c8c25a42",
+                "reference": "2d2b0866397b870e307ca5f9923c89b1c8c25a42",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
-                "symfony/polyfill-php55": "~1.0"
+                "php": ">=5.5.9"
+            },
+            "conflict": {
+                "symfony/property-access": ">=3.0,<3.0.4|>=2.8,<2.8.4"
             },
             "require-dev": {
                 "doctrine/annotations": "~1.0",
                 "doctrine/cache": "~1.0",
-                "symfony/config": "~2.2|~3.0.0",
-                "symfony/property-access": "~2.3|~3.0.0",
-                "symfony/yaml": "~2.0,>=2.0.5|~3.0.0"
+                "phpdocumentor/reflection-docblock": "~3.0",
+                "symfony/cache": "~3.1",
+                "symfony/config": "~2.8|~3.0",
+                "symfony/http-foundation": "~2.8|~3.0",
+                "symfony/property-access": "~2.8|~3.0",
+                "symfony/property-info": "~3.1",
+                "symfony/yaml": "~2.8|~3.0"
             },
             "suggest": {
                 "doctrine/annotations": "For using the annotation mapping. You will also need doctrine/cache.",
                 "doctrine/cache": "For using the default cached annotation reader and metadata cache.",
+                "psr/cache-implementation": "For using the metadata cache.",
                 "symfony/config": "For using the XML mapping loader.",
+                "symfony/http-foundation": "To use the DataUriNormalizer.",
                 "symfony/property-access": "For using the ObjectNormalizer.",
+                "symfony/property-info": "To deserialize relations.",
                 "symfony/yaml": "For using the default YAML mapping loader."
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -2247,34 +2050,34 @@
             ],
             "description": "Symfony Serializer Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-07 14:04:32"
+            "time": "2016-10-07 16:40:45"
         },
         {
             "name": "symfony/translation",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/translation.git",
-                "reference": "d60b8e076d22953aabebeebda53bf334438e7aca"
+                "reference": "ff1285087397d2f64041b35e591f3025881c90cd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/translation/zipball/d60b8e076d22953aabebeebda53bf334438e7aca",
-                "reference": "d60b8e076d22953aabebeebda53bf334438e7aca",
+                "url": "https://api.github.com/repos/symfony/translation/zipball/ff1285087397d2f64041b35e591f3025881c90cd",
+                "reference": "ff1285087397d2f64041b35e591f3025881c90cd",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
+                "php": ">=5.5.9",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "conflict": {
-                "symfony/config": "<2.7"
+                "symfony/config": "<2.8"
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~2.8",
-                "symfony/intl": "~2.4|~3.0.0",
-                "symfony/yaml": "~2.2|~3.0.0"
+                "symfony/config": "~2.8|~3.0",
+                "symfony/intl": "~2.8|~3.0",
+                "symfony/yaml": "~2.8|~3.0"
             },
             "suggest": {
                 "psr/log": "To use logging capability in translator",
@@ -2284,7 +2087,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -2311,52 +2114,54 @@
             ],
             "description": "Symfony Translation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-25 01:40:30"
+            "time": "2016-10-18 04:30:12"
         },
         {
             "name": "symfony/validator",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/validator.git",
-                "reference": "ea0ce99531c9eb82abf21011da4e111932f8ce81"
+                "reference": "709dffa9193ee2b88e1fb1760cc0ba5780f1a8b2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/validator/zipball/ea0ce99531c9eb82abf21011da4e111932f8ce81",
-                "reference": "ea0ce99531c9eb82abf21011da4e111932f8ce81",
+                "url": "https://api.github.com/repos/symfony/validator/zipball/709dffa9193ee2b88e1fb1760cc0ba5780f1a8b2",
+                "reference": "709dffa9193ee2b88e1fb1760cc0ba5780f1a8b2",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
-                "symfony/translation": "~2.4|~3.0.0"
+                "php": ">=5.5.9",
+                "symfony/polyfill-mbstring": "~1.0",
+                "symfony/translation": "~2.8|~3.0"
             },
             "require-dev": {
                 "doctrine/annotations": "~1.0",
                 "doctrine/cache": "~1.0",
                 "egulias/email-validator": "~1.2,>=1.2.1",
-                "symfony/config": "~2.2|~3.0.0",
-                "symfony/expression-language": "~2.4|~3.0.0",
-                "symfony/http-foundation": "~2.1|~3.0.0",
-                "symfony/intl": "~2.7.4|~2.8|~3.0.0",
-                "symfony/property-access": "~2.3|~3.0.0",
-                "symfony/yaml": "~2.0,>=2.0.5|~3.0.0"
+                "symfony/cache": "~3.1",
+                "symfony/config": "~2.8|~3.0",
+                "symfony/expression-language": "~2.8|~3.0",
+                "symfony/http-foundation": "~2.8|~3.0",
+                "symfony/intl": "~2.8|~3.0",
+                "symfony/yaml": "~2.8|~3.0"
             },
             "suggest": {
                 "doctrine/annotations": "For using the annotation mapping. You will also need doctrine/cache.",
                 "doctrine/cache": "For using the default cached annotation reader and metadata cache.",
                 "egulias/email-validator": "Strict (RFC compliant) email validation",
+                "psr/cache-implementation": "For using the metadata cache.",
                 "symfony/config": "",
-                "symfony/expression-language": "For using the 2.4 Expression validator",
+                "symfony/expression-language": "For using the Expression validator",
                 "symfony/http-foundation": "",
                 "symfony/intl": "",
-                "symfony/property-access": "For using the 2.4 Validator API",
+                "symfony/property-access": "For using the Expression validator",
                 "symfony/yaml": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -2383,29 +2188,29 @@
             ],
             "description": "Symfony Validator Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-27 12:57:53"
+            "time": "2016-10-19 22:38:53"
         },
         {
             "name": "symfony/yaml",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "584e52cb8f788a887553ba82db6caacb1d6260bb"
+                "reference": "7ff51b06c6c3d5cc6686df69004a42c69df09e27"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/584e52cb8f788a887553ba82db6caacb1d6260bb",
-                "reference": "584e52cb8f788a887553ba82db6caacb1d6260bb",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/7ff51b06c6c3d5cc6686df69004a42c69df09e27",
+                "reference": "7ff51b06c6c3d5cc6686df69004a42c69df09e27",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -2432,7 +2237,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-04 07:54:35"
+            "time": "2016-10-24 18:41:13"
         },
         {
             "name": "twig/twig",
@@ -3086,6 +2891,48 @@
             "time": "2015-11-05 12:58:44"
         },
         {
+            "name": "ircmaxell/password-compat",
+            "version": "v1.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ircmaxell/password_compat.git",
+                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ircmaxell/password_compat/zipball/5c5cde8822a69545767f7c7f3058cb15ff84614c",
+                "reference": "5c5cde8822a69545767f7c7f3058cb15ff84614c",
+                "shasum": ""
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/password.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Anthony Ferrara",
+                    "email": "ircmaxell@php.net",
+                    "homepage": "http://blog.ircmaxell.com"
+                }
+            ],
+            "description": "A compatibility library for the proposed simplified password hashing algorithm: https://wiki.php.net/rfc/password_hash",
+            "homepage": "https://github.com/ircmaxell/password_compat",
+            "keywords": [
+                "hashing",
+                "password"
+            ],
+            "time": "2014-11-20 16:49:30"
+        },
+        {
             "name": "jcalderonzumba/gastonjs",
             "version": "v1.0.2",
             "source": {
@@ -4099,25 +3946,25 @@
         },
         {
             "name": "symfony/browser-kit",
-            "version": "v2.7.6",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/browser-kit.git",
-                "reference": "07d664a052572ccc28eb2ab7dbbe82155b1ad367"
+                "reference": "901319a31c9b3cee7857b4aeeb81b5d64dfa34fc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/browser-kit/zipball/07d664a052572ccc28eb2ab7dbbe82155b1ad367",
-                "reference": "07d664a052572ccc28eb2ab7dbbe82155b1ad367",
+                "url": "https://api.github.com/repos/symfony/browser-kit/zipball/901319a31c9b3cee7857b4aeeb81b5d64dfa34fc",
+                "reference": "901319a31c9b3cee7857b4aeeb81b5d64dfa34fc",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9",
-                "symfony/dom-crawler": "~2.0,>=2.0.5"
+                "php": ">=5.5.9",
+                "symfony/dom-crawler": "~2.8|~3.0"
             },
             "require-dev": {
-                "symfony/css-selector": "~2.0,>=2.0.5",
-                "symfony/process": "~2.3.34|~2.7,>=2.7.6"
+                "symfony/css-selector": "~2.8|~3.0",
+                "symfony/process": "~2.8|~3.0"
             },
             "suggest": {
                 "symfony/process": ""
@@ -4125,13 +3972,16 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.7-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
                     "Symfony\\Component\\BrowserKit\\": ""
-                }
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -4149,29 +3999,29 @@
             ],
             "description": "Symfony BrowserKit Component",
             "homepage": "https://symfony.com",
-            "time": "2015-10-23 14:47:27"
+            "time": "2016-09-06 11:02:40"
         },
         {
             "name": "symfony/css-selector",
-            "version": "v2.8.4",
+            "version": "v3.1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/css-selector.git",
-                "reference": "07b7ced3ae0c12918477c095453ea8595000810e"
+                "reference": "ca809c64072e0fe61c1c7fb3c76cdc32265042ac"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/css-selector/zipball/07b7ced3ae0c12918477c095453ea8595000810e",
-                "reference": "07b7ced3ae0c12918477c095453ea8595000810e",
+                "url": "https://api.github.com/repos/symfony/css-selector/zipball/ca809c64072e0fe61c1c7fb3c76cdc32265042ac",
+                "reference": "ca809c64072e0fe61c1c7fb3c76cdc32265042ac",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.8-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -4202,7 +4052,7 @@
             ],
             "description": "Symfony CssSelector Component",
             "homepage": "https://symfony.com",
-            "time": "2016-03-04 07:54:35"
+            "time": "2016-09-06 11:02:40"
         }
     ],
     "aliases": [],
diff --git a/core/composer.json b/core/composer.json
index 7ae0ccf..7d8ddcf 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -5,20 +5,20 @@
     "license": "GPL-2.0+",
     "require": {
         "php": ">=5.5.9",
-        "symfony/class-loader": "~2.8",
-        "symfony/console": "~2.8",
-        "symfony/dependency-injection": "~2.8",
-        "symfony/dom-crawler": ">=2.8.13 <3.0",
-        "symfony/event-dispatcher": "~2.8",
-        "symfony/http-foundation": "~2.8",
-        "symfony/http-kernel": "~2.8",
-        "symfony/routing": "~2.8",
-        "symfony/serializer": "~2.8",
-        "symfony/translation": "~2.8",
-        "symfony/validator": "~2.8",
-        "symfony/process": "~2.8",
+        "symfony/class-loader": "~3.1",
+        "symfony/console": "~3.1",
+        "symfony/dependency-injection": "~3.1",
+        "symfony/dom-crawler": ">=3.1.6 <4.0",
+        "symfony/event-dispatcher": "~3.1",
+        "symfony/http-foundation": "~3.1",
+        "symfony/http-kernel": "~3.1",
+        "symfony/routing": "~3.1",
+        "symfony/serializer": "~3.1",
+        "symfony/translation": "~3.1",
+        "symfony/validator": "~3.1",
+        "symfony/process": "~3.1",
         "symfony/polyfill-iconv": "~1.0",
-        "symfony/yaml": "~2.8",
+        "symfony/yaml": "~3.1",
         "twig/twig": "^1.23.1",
         "doctrine/common": "2.5.*",
         "doctrine/annotations": "1.2.*",
@@ -42,7 +42,7 @@
         "jcalderonzumba/mink-phantomjs-driver": "~0.3.1",
         "mikey179/vfsStream": "~1.2",
         "phpunit/phpunit": "~4.8",
-        "symfony/css-selector": "~2.8"
+        "symfony/css-selector": "~3.1"
     },
     "replace": {
         "drupal/action": "self.version",