Merge pull request #879 from uuid-rs/cargo/v1.23.1

Prepare for 1.23.1 release

Merge pull request #876 from uuid-rs/cargo/v1.23.0

Prepare for 1.23.0 release

Merge pull request #864 from uuid-rs/cargo/v1.22.0

Prepare for 1.22.0 release

Merge pull request #859 from uuid-rs/cargo/v1.21.0

Prepare for 1.21.0 release

Merge pull request #857 from uuid-rs/cargo/v1.20.0

Prepare for 1.20.0 release

Merge pull request #849 from uuid-rs/cargo/v1.19.0

Prepare for 1.19.0 release

Merge pull request #842 from uuid-rs/cargo/v1.18.1

Prepare for 1.18.1 release

Merge pull request #839 from uuid-rs/cargo/v1.18.0

Prepare for 1.18.0 release

Merge pull request #829 from uuid-rs/cargo/v1.17.0

Prepare for 1.17.0 release

Merge pull request #817 from uuid-rs/cargo/v1.16.0

Prepare for 1.16.0 release