[5.0] Bugfix to properly set request instance for console

> Catchable fatal error: Argument 2 passed to Illuminate\Routing\UrlGenerator::__construct() must be an instance of Illuminate\Http\Request, null given, called in /Users/crynobone/Projects/orchestra/orchestraplatform.com/vendor/laravel/framework/src/Illuminate/Routing/RoutingServiceProvider.php on line 56 and defined in /Users/crynobone/Projects/orchestra/orchestraplatform.com/vendor/laravel/framework/src/Illuminate/Routing/UrlGenerator.php on line 70

While most of the time `"url"` is not needed on artisan command, you might still use it when using queue to send email (password resets etc), or include `illuminate/html` which currently break all artisan command.

## How to reproduce the bug

1. `$ composer create-project laravel/laravel test dev-develop`
2. `$ cd test && composer require "illuminate/html=~5.0"`
3. `$ php artisan`

Signed-off-by: crynobone <crynobone@gmail.com>