[LEARNER-4238] Upgrade to Android Studio 3+and SDK 27
Hello guys, I've been working these days to upgrade the builds tools and Android Studio to the latest version and I made some progress. On the overall, almost all dependencies updated and I spend some time dealing with the breaking changes and making AAPT2 work.
I still need to fix some tests that depend on greenrobot EventBus getting ignored and some tests falling for some bug with RoboGuice.
The EventBus dependent tests are passing but AS counts him has ignored.
This user is not actually part of the mobile team and will need to sign the contributors agreement
Checking with the mobile team as this OSPR actually mentions a Learner ticket.