Merge pull request googleapis#1689 from dhermes/cut-0.12.0

Upgrading version to 0.12.0

Merge pull request googleapis#1573 from jonparrott/cut-0.10.2

Upgrading version to 0.11.0

Merge pull request googleapis#1573 from jonparrott/cut-0.10.2

Upgrading version to 0.11.0

Merge pull request googleapis#1509 from dhermes/cut-0.10.1

Upgrading version to 0.10.1.

Merge pull request googleapis#1483 from dhermes/cut-0.10.0

Upgrading version to 0.10.0.

Merge pull request googleapis#1418 from dhermes/cut-0.9.0

Upgrading version to 0.9.0.

Merge pull request googleapis#1158 from dhermes/cut-0.7.2

Upgrading version to 0.8.0.

Merge pull request googleapis#1057 from dhermes/cut-0.7.1

Upgrading version to 0.7.1.

Merge pull request googleapis#981 from dhermes/cut-0.6.1

Upgrading version to 0.7

Merge pull request googleapis#907 from dhermes/cut-release-0.5.1

Upgrading version to 0.6.0.