Merge pull request #33 from evant/master

Use the new gradle android model to clean things up.
Update example to use new gradle plugin, build tools and android API.
Update gradle wrapper to 1.12
Released V1.2.3 to Maven Central
Prepare for next Iteration
Implement extension to allow configuring if non-debugable build types should generate tests.
Merge pull request #35 from SuperJugy/test

closes #34
Released V1.3.0 to Maven Central
Prepare for next Iteration