Merge pull request mercari#154 from mercari/bump-version-to-0.13.2

bumped version to 0.13.2.

Merge pull request mercari#151 from mercari/feature_bumped_0_13_1

bumped version to 0.13.1

Merge pull request mercari#140 from mercari/feature_bumped_version_to…

…_0_13_0

dumped version to 0.13.0

Merge pull request mercari#135 from mercari/bumped_version_to_0_12_0

bumped version to 0.12.0

Merge pull request mercari#123 from mercari/feature_bumped_version_0_…

…11_1

bumped version to 0.11.1

Merge pull request mercari#119 from mercari/bump-0-11-0

bumped version to 0.11.0.

Merge pull request mercari#102 from mercari/gaurun-0.10.0

bumped version to 0.10.0

Merge pull request mercari#100 from mercari/gauru-0.9.1

bumped version to 0.9.1.

Merge pull request mercari#85 from mercari/v0.9.0

bumped version to 0.9.0.

bumped version to 0.8.1.