Add extension properties for test parallelization.
Use HTTPS for Gradle Wrapper for better security.
Updated Android Gradle plugin to 0.13.2
Updated Travis configuration
Merge pull request #85 from ChristianBecker/travis

Updated Travis configuration.
Merge pull request #83 from ChristianBecker/gradle_https

Use HTTPS for Gradle Wrapper for better security.
Merge pull request #84 from ChristianBecker/android_gradle_0_13_2

Updated Android Gradle plugin to 0.13.2.
Merge pull request #82 from mattott/master

Add extension properties for test parallelization.