added sample sbt scalajs-bundler settings.
added sample sbt scalajs-bundler settings.
matthughes/scalajs-react,japgolly/scalajs-react,matthughes/scalajs-react,japgolly/scalajs-react,matthughes/scalajs-react,japgolly/scalajs-react,japgolly/scalajs-react