Merge pull request GoogleChrome#501 from AVGP/release-3.1.0

Release 3.1.0

Bumps major version to 3

Merge pull request GoogleChrome#250 from GoogleChrome/release-middleware

Prepare rendertron-middleware 0.1.5 release

Merge pull request GoogleChrome#248 from GoogleChrome/uatype

Fix typings

Update changelog for 2.0.1 (GoogleChrome#223)

Update CHANGELOG.md (GoogleChrome#205)

1.1.1

1.1.0