- Allows for quick and easy one-liners and also allows for temporarily changing configuration for a few requests.
- Update example codes to promote usage of fluent-style configuration.
- Make the "Client" struct construction-friendly so it can be easily initialized with "new(footballdata.Client)".
- Rewrite example_test.go to show the respective new usage. Make it clear here that the SetToken call is optional.
This would fix#2.