Hey there! So you want to contribute to FirebaseUI? Before you file this pull request, follow these steps:

  * Read [the contribution guidelines](CONTRIBUTING.md).
  * Run `./gradlew check` to ensure the Travis build passes.
  * If this has been discussed in an issue, make sure to mention the issue number here.  If not, go file an issue about this to make sure this is a desirable change.
  * If this is a new feature please co-ordinate with someone on [FirebaseUI-iOS](https://github.com/firebase/firebaseui-ios) to make sure that we can implement this on both platforms and maintain feature parity.