0730a00dc7
This handles twilight's migration to a unified `Id` type, which is the only design change needing any handling on our part. All our `From`/`Into`s are covered now, and deprecated type aliases are no longer used. This was tested using `cargo make ready` and by manually running "examples/twilight".
Songbird examples
These examples show more advanced use of Songbird, or how to include Songbird in bots built on other libraries, such as twilight or serenity.