Auto merge of rust-lang#512 - Amanieu:release-0.14.4, r=Amanieu

Release v0.14.4

Auto merge of rust-lang#486 - Amanieu:release-0.14.3, r=Amanieu

Prepare release of v0.14.3

Auto merge of rust-lang#477 - Amanieu:release-0.14.2, r=Amanieu

Prepare release of v0.14.2

Auto merge of rust-lang#471 - Amanieu:release-0.14.1, r=Amanieu

Prepare release of v0.14.1

Auto merge of rust-lang#434 - Amanieu:release-0.14.0, r=Amanieu

Prepare release of v0.14.0

See the changelog for highlights.

Version 0.13.2

Version 0.13.1

Version 0.12.3

Version 0.12.2

Version 0.12.1