Merge pull request #29 from google/dev

Merge 1.0.12 to master
Merge pull request #43 from google/dev

Merge 1.0.13 to master
Merge pull request #199 from google/dev

Release 1.1.0
Include gradle plugin 1.0.0
Merge pull request #216 from ened/gradle-plugin-100

Include gradle plugin 1.0.0
Merge pull request #218 from google/master

Include gradle plugin 1.0.0
Merge pull request #219 from google/dev

Include gradle plugin 1.0.0