Update Laravel 5.5 skeleton.
Update Laravel 5.5 skeleton.

Updated to laravel/laravel@392ece3e4fdc4d58c562b0404a66ef2b90a9f9b9

Signed-off-by: crynobone <e1a543840a942eb68427510a8a483282a7bfeddf@gmail.com>

orchestral/testbench-core,orchestral/testbench-core