Laravel 5.3 upgrade (#189)

* Started move to laravel 5.3

* Started updating login & registration flows for laravel 5.3 update

* Updated app emails to notification system

* Fixed registations bugs and removed email confirmation model

* Fixed large portion of laravel post-upgrade issues

* Fixed and tested LDAP process

app/Http/Kernel.php

@@ -9,15 +9,32 @@ class Kernel extends HttpKernel
     /**
      * The application's global HTTP middleware stack.
      *
+     * These middleware are run during every request to your application.
+     *
      * @var array
      */
     protected $middleware = [
         \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
-        \BookStack\Http\Middleware\EncryptCookies::class,
-        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
-        \Illuminate\Session\Middleware\StartSession::class,
-        \Illuminate\View\Middleware\ShareErrorsFromSession::class,
-        \BookStack\Http\Middleware\VerifyCsrfToken::class,
+    ];
+
+    /**
+     * The application's route middleware groups.
+     *
+     * @var array
+     */
+    protected $middlewareGroups = [
+        'web' => [
+            \BookStack\Http\Middleware\EncryptCookies::class,
+            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
+            \Illuminate\Session\Middleware\StartSession::class,
+            \Illuminate\View\Middleware\ShareErrorsFromSession::class,
+            \BookStack\Http\Middleware\VerifyCsrfToken::class,
+            \Illuminate\Routing\Middleware\SubstituteBindings::class,
+        ],
+        'api' => [
+            'throttle:60,1',
+            'bindings',
+        ],
     ];
 
     /**
@@ -26,6 +43,7 @@ class Kernel extends HttpKernel
      * @var array
      */
     protected $routeMiddleware = [
+        'can' => \Illuminate\Auth\Middleware\Authorize::class,
         'auth'       => \BookStack\Http\Middleware\Authenticate::class,
         'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
         'guest'      => \BookStack\Http\Middleware\RedirectIfAuthenticated::class,