android/libs/cardboard.jar:
mkdir -p android/libs
- https://raw.githubusercontent.com/googlesamples/cardboard-java/master/CardboardSample/libs/cardboard.jar
curl --progress-bar -o android/libs/cardboard.jar \
+ https://raw.githubusercontent.com/googlevr/gvr-android-sdk/e226f15c/CardboardSample/libs/cardboard.jar