Provide options to build iOS .ipa and Android .apk files completely in the Bluemix cloud

Please see the following link for a primer on the issue we are facing

http://stackoverflow.com/questions/41624892/how-to-build-a-react-native-ipa-and-apk-application-in-bluemix

Ideally we would like a turnkey method to build .ipa and .apk files.  Ideally and natively through the Pipeline would be nice.  CircleCI does this today as an example.

Alternatively we recognize we can do Android .apk today on Bluemix by jumping through some hoops with build scripting it.

iOS lastly is a blocking issue for us.  We would at a bare minimum like Bluemix to provide an option to allow us to spin up a Mac image to build an .ipa on.  Again if we can do this directly from the pipeline without jumping through hoops that would be ideal.