Nice, really appreciate the progress here! However, is there any reason the artifacts aren't on github? It may be more convenient when it comes to issues/changelogs etc.
agreed, they will be soon. At the moment the core is cross-compiled from the Java-Client using j2obc, hence the underlying repo is the java one. We are in the process of evaluating how well this worked.
:D I am actually trying to do something similar with the js client. I recently tried to convert it to Dart using jsparser, since i am working with http://flutter.io, a hybrid app development project from Google. It worked out just fine for now, currently testing it to get the weak spots fixed.