Add Laravel 8 Support (jamesmills#51)

Laravel Passport support (jamesmills#29)

Co-authored-by: Amandio Magalhaes <[email protected]>

Merged config files to prevent failures (jamesmills#28)

Co-authored-by: Amandio Magalhaes <[email protected]>

Updating to support L7

Accepting null as the first param of the convertToLocal method. (jame…

…smills#19)

* Accepting null

* Docs

Updating changelog for new release

Updating changelog for new release

Merge branch 'master' of https://github.com/jamesmills/laravel-timezone

Updated changlog for new release

Added config option for overwriting database value