'php artisan asset:flush' doesn't support multitenancy feature

[Ruslan Getmansky]

FlushPipelineCommand::fire() tries to take pipeline_dir, css_dir and js_dir from config without taking in account groups here:
https://github.com/Stolz/Assets/blob/master/src/Laravel/FlushPipelineCommand.php#L35

[Javi]

@RuslanGetmansky , thanks for reporting the problem. It is fixed now.