Prepare 0.3.4 release
Prepare 0.3.4 release

alechenninger/dartlang,agudulin/dartlang,alechenninger/dartlang,agudulin/dartlang,thso/dartlang,dart-atom/dartlang,alechenninger/dartlang,dart-atom/dartlang,thso/dartlang,agudulin/dartlang,thso/dartlang