trying to integrate travis-ci
Adding travis build indicator
trying to include build-tools-18.1.1
Trying alternate travis config

mostly just this https://github.com/pestrada/android-tdd-playground/blob/master/.travis.yml but uses gradle wrapper
fixing build-tools-18.1.1 step
using `adb wait-for-device`
Removing ambiguous test method
Updating to latest SDK
fixing sdk url