v0.18.0

What's Changed

• Fix a problem when used with the most recent version of syn by @adetaylor in #971
• Roll to moveit 0.5.0. by @adetaylor in #970. This change allows you to move out of a UniquePtr, e.g.

let xyz: UniquePtr<Foo> = ...;
moveit! {
  let stack_xyz = autocxx::moveit::new::mov(xyz);
}

This is technically a breaking change though I doubt anyone much is using the MoveRef trait a lot.

Full Changelog: v0.17.5...v0.18.0