Added default value for GITLAB_INSTANCE_URI
Added default value for GITLAB_INSTANCE_URI

renatomarinho/laravel-gitscrum,gitscrum-community-edition/laravel-gitscrum,renatomarinho/laravel-gitscrum,gitscrum-community-edition/laravel-gitscrum,renatomarinho/laravel-gitscrum,gitscrum-community-edition/laravel-gitscrum