Merge pull request docker#1536 from docker/2.2.1-release

2.2.1 release

Merge pull request docker#1519 from shin-/2.2.0-release

2.2.0 release

Merge pull request docker#1463 from docker/2.1.0-release

2.1.0 release

Merge pull request docker#1402 from docker/2.0.2-release

2.0.2 release

Merge pull request docker#1386 from docker/2.0.1-release

2.0.1 release

Merge pull request docker#1343 from docker/2.0.0-release

2.0.0 release

Merge pull request docker#1286 from docker/1.10.6-release

1.10.6 release

Merge pull request docker#1275 from docker/1.10.5-release

1.10.5 release

Merge pull request docker#1259 from docker/1.10.4-release

1.10.4 release

Merge pull request docker#1220 from docker/1.10.3-release

1.10.3 release