Merge pull request tensorflow#1172 from netfs/releng_20181106_095039

Update version for 1.12.0 release.

Merge pull request tensorflow#1164 from netfs/releng_20181026_132728

Update version for 1.12.0-rc0 release.

Merge pull request tensorflow#1154 from netfs/releng_20181023_120926

Update version for 1.11.1 release.

Merge pull request tensorflow#1123 from christisg/releng_20181004_180742

Update version for 1.11.0 release.

Merge pull request tensorflow#1104 from lilao/releng_20180921_095220

Update version for 1.11.0-rc1 release.

Merge pull request tensorflow#1094 from nrobeR/releng_20180914_103205

Update version for 1.11.0-rc0 release.

Merge pull request tensorflow#1056 from netfs/releng_20180814_164147

Update version for 1.10.1 release.

Merge pull request tensorflow#1046 from christisg/releng_20180809_170115

Update version for 1.10.0 release.

Merge pull request tensorflow#1037 from netfs/releng_20180806_112737

Update version for 1.9.1 release.

Merge pull request tensorflow#1028 from vinuraja/releng_20180731_154324

Update version for 1.10.0-rc1 release.