Release 0.27.0 (#634)

Release 0.26.2

Release 0.26.1 (#602)

Release 0.26.0 (#598)

Merge pull request #571 from philipc/release

Release 0.25.0

Merge pull request #555 from philipc/release

Release 0.24.0

Merge pull request #535 from philipc/release

Release 0.23.0

Merge pull request #522 from philipc/release

Release 0.22.0

Merge pull request #499 from philipc/release

Release 0.21.0

Merge pull request #467 from philipc/release

Release 0.20.0