Added a language test, added Dutch basic file. [skip ci]

app/Http/Middleware/Authenticate.php

@@ -1,8 +1,11 @@
 <?php namespace FireflyIII\Http\Middleware;
 
+use App;
 use Closure;
+use FireflyIII\Models\Preference;
 use Illuminate\Contracts\Auth\Guard;
 use Illuminate\Http\Request;
+use Preferences;
 
 /**
  * Class Authenticate
@@ -48,6 +51,10 @@ class Authenticate
                 return redirect()->guest('auth/login');
             }
         }
+        // if logged in, set user language:
+        $pref = Preferences::get('language', 'en');
+        App::setLocale($pref->data);
+
 
         return $next($request);
     }

resources/lang/en/firefly.php

@@ -1,7 +1,7 @@
 <?php
 return [
+    'test'            => 'You have selected English.',
     'welcome'         => 'Welcome to Firefly!',
-    'mainTitle'       => 'What\'s playing?',
     'close'           => 'Close',
     'pleaseHold'      => 'Please hold...',
     'mandatoryFields' => 'Mandatory fields',

resources/lang/nl/firefly.php

@@ -0,0 +1,5 @@
+<?php
+return [
+    'test'            => 'Nederlands geselecteerd!',
+
+];

resources/twig/index.twig

@@ -17,7 +17,7 @@
         <h2><a href="{{route('accounts.create','asset')}}">Start from scratch</a></h2>
     </div>
 {% else %}
-
+    <!-- Language test: {{ 'test'|_ }} -->
     <!-- fancy new boxes -->
     {% include 'partials/boxes.twig' %}