Update the app to Laravel 5.5

Squashed commit of the following:

commit 070f46bbacd91855730d467cc2806183441791ae
Author: Jonny Barnes <jonny@jonnybarnes.uk>
Date:   Mon Sep 4 18:06:04 2017 +0100

    Now we now how the laravel IoC conatiner works, no need to be newing class dependencies

commit 57eeacdef178532a681f774f8c6738950d40c964
Author: Jonny Barnes <jonny@jonnybarnes.uk>
Date:   Mon Sep 4 17:59:28 2017 +0100

    Get json test working again

commit 81c3cfc9b432241d8a4df7f1e0511a50ea4f9b90
Author: Jonny Barnes <jonny@jonnybarnes.uk>
Date:   Mon Sep 4 14:38:10 2017 +0100

    Can’t use RefreshDatabase yet

commit 4ba5ff724d50ca86b3fa90c7bb4e71ad9e4dad79
Author: Jonny Barnes <jonny@jonnybarnes.uk>
Date:   Mon Sep 4 14:10:33 2017 +0100

    Initial attempt at updating to Laravel 5.5

app/Exceptions/Handler.php

@@ -4,24 +4,28 @@ namespace App\Exceptions;
 
 use Exception;
 use Illuminate\Support\Facades\Route;
-use Illuminate\Auth\AuthenticationException;
 use Illuminate\Session\TokenMismatchException;
 use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
 
 class Handler extends ExceptionHandler
 {
     /**
-     * A list of the exception types that should not be reported.
+     * A list of the exception types that are not reported.
      *
      * @var array
      */
     protected $dontReport = [
-        \Illuminate\Auth\AuthenticationException::class,
-        \Illuminate\Auth\Access\AuthorizationException::class,
-        \Symfony\Component\HttpKernel\Exception\HttpException::class,
-        \Illuminate\Database\Eloquent\ModelNotFoundException::class,
-        \Illuminate\Session\TokenMismatchException::class,
-        \Illuminate\Validation\ValidationException::class,
+        //
+    ];
+
+    /**
+     * A list of the inputs that are never flashed for validation exceptions.
+     *
+     * @var array
+     */
+    protected $dontFlash = [
+        'password',
+        'password_confirmation',
     ];
 
     /**
@@ -52,20 +56,4 @@ class Handler extends ExceptionHandler
 
         return parent::render($request, $exception);
     }
-
-    /**
-     * Convert an authentication exception into an unauthenticated response.
-     *
-     * @param  \Illuminate\Http\Request  $request
-     * @param  \Illuminate\Auth\AuthenticationException  $exception
-     * @return \Illuminate\Http\Response
-     */
-    protected function unauthenticated($request, AuthenticationException $exception)
-    {
-        if ($request->expectsJson()) {
-            return response()->json(['error' => 'Unauthenticated.'], 401);
-        }
-
-        return redirect()->guest('login');
-    }
 }