* Fixes 284 Searching for reactNative version in projects ext root now uses safeExtGet to stop build issues where reactNative is not set.
Old config called `Android dependency 'com.android.support:support-v4' has different version for the compile (26.1.0) and runtime (27.1.1) classpath. You should manually set the same version via DependencyResolution` error, this PR has fixed this