move currency to config file; change units to their own group in settings

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "dbfae0d2bcd1653a30a90bb2e244308c",
+    "content-hash": "4d004ed24ecf6bf961fc610d54213848",
     "packages": [
         {
             "name": "arrilot/laravel-widgets",
@@ -1861,6 +1861,86 @@
             ],
             "time": "2017-12-11T05:05:12+00:00"
         },
+        {
+            "name": "moneyphp/money",
+            "version": "v3.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/moneyphp/money.git",
+                "reference": "5e6a3c98ba2cb190d48d35656967eacf30716034"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/moneyphp/money/zipball/5e6a3c98ba2cb190d48d35656967eacf30716034",
+                "reference": "5e6a3c98ba2cb190d48d35656967eacf30716034",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.6"
+            },
+            "require-dev": {
+                "cache/taggable-cache": "^0.4.0",
+                "doctrine/instantiator": "^1.0.5",
+                "ext-bcmath": "*",
+                "ext-gmp": "*",
+                "ext-intl": "*",
+                "florianv/swap": "^3.0",
+                "leanphp/phpspec-code-coverage": "^3.0 || ^4.0",
+                "moneyphp/iso-currencies": "^3.0",
+                "php-http/message": "^1.4",
+                "php-http/mock-client": "^0.3.3",
+                "phpspec/phpspec": "^3.0",
+                "phpunit/phpunit": "^5",
+                "psr/cache": "^1.0",
+                "sllh/php-cs-fixer-styleci-bridge": "^2.1",
+                "symfony/phpunit-bridge": "^4"
+            },
+            "suggest": {
+                "ext-bcmath": "Calculate without integer limits",
+                "ext-gmp": "Calculate without integer limits",
+                "ext-intl": "Format Money objects with intl",
+                "florianv/swap": "Exchange rates library for PHP",
+                "psr/cache-implementation": "Used for Currency caching"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Money\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mathias Verraes",
+                    "email": "mathias@verraes.net",
+                    "homepage": "http://verraes.net"
+                },
+                {
+                    "name": "Frederik Bosch",
+                    "email": "f.bosch@genkgo.nl"
+                },
+                {
+                    "name": "Márk Sági-Kazár",
+                    "email": "mark.sagi-kazar@gmail.com"
+                }
+            ],
+            "description": "PHP implementation of Fowler's Money pattern",
+            "homepage": "http://verraes.net/2011/04/fowler-money-pattern-in-php/",
+            "keywords": [
+                "Value Object",
+                "money",
+                "vo"
+            ],
+            "time": "2018-02-16T11:04:16+00:00"
+        },
         {
             "name": "monolog/monolog",
             "version": "1.23.0",