add Dingo/api 2.0 support

add Dingo/api 2.0 support and handle Laravel Unauthenticated exception.

Compatible with laravel 5.5 lts

v5.5.0

change to fit laravel 5.5

Fix filename bug.

Fix filename bug.

add dingo auth provider

• add dingo auth provider
• update docs

Release for Laravel 5.4 and dingo

v5.4.0

add service providor and config