message: Updated gradle versions
  No idea if this is right, copied from
  Stops working with old react versions
diff: apply plugin: 'com.android.library'
  android {
  - compileSdkVersion 23
  - buildToolsVersion "23.0.1"
  + compileSdkVersion 26
  + buildToolsVersion "26.0.3"
  defaultConfig {
  minSdkVersion 16
  targetSdkVersion 23
  @@ -20,6 +20,6 @@ android {
  dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  - compile "com.android.support:appcompat-v7:23.0.1"
  + compile "com.android.support:appcompat-v7:26.0.2"
  compile "com.facebook.react:react-native:+"
  }
  