Merge pull request #3 from Kisty/gradle

Update README.md for android gradle plugins 0.9
Updated to Gradle 1.11
Merge pull request #7 from algobardo/gradle

Updated to Gradle 1.11
Migrated unit tests instrumentTest->androidTest

This is to match with the changes from android gradle 0.9
Merge branch 'gradle' of https://github.com/Kisty/double-espresso into gradle