384 Laravel 6 changes (#385)

* 384 Laravel 6 changes

* Library versions

* Update package versions

* Add keyType to models

* Remove unused dependencies

* StyleCI fixes

* Fix models for test

* Fix tests output and update test runner

* Unused imports

* Update exceptions handler

* Fix login page

app/Providers/TimezonelistProvider.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Providers;
+
+use App\Support\Timezonelist;
+use Illuminate\Support\ServiceProvider;
+
+class TimezonelistProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+    }
+
+    /**
+     * Register services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        $this->app->singleton('timezonelist', function ($app) {
+            return new Timezonelist();
+        });
+    }
+}