Merge pr/1379 into dtolnay

Merge pull request rust-lang#1661 from ehuss/bump-version

Update to 0.4.13

Merge pull request rust-lang#1623 from ehuss/release-next

Update to 0.4.12

Merge pull request rust-lang#1615 from ehuss/release-next

Update to 0.4.11

Merge pull request rust-lang#1573 from ehuss/release-next

Update to 0.4.10

Merge pull request rust-lang#1562 from ehuss/bump-version

Update to 0.4.9

Merge pull request rust-lang#1525 from joshrotenberg/guide/server-com…

…mand-updates

Update serve documentation in the guide

Merge pull request rust-lang#1474 from ehuss/bump-version

Update to 0.4.7

Merge pull request rust-lang#1447 from ehuss/bump-version

Update to 0.4.6.

Bump 0.4.5