Bump version to v0.9.0

Bump version to 0.8.9

Merge pull request google#148 from davidzchen/bazel-fix

Fix Bazel build targets

Bump version

Bump version

Fix file not included in Python build

Merge pull request google#79 from davidzchen/build-fix

Fix Bazel build for new directory structure.

Merge pull request google#79 from davidzchen/build-fix

Fix Bazel build for new directory structure.

Bump version number

Fix format using hidden fields