add methods to Scala Wrapper (5) (window)
add methods to Scala Wrapper (5) (window)

jbripley/RxScala,samuelgruetter/RxScala,zhongdj/RxScala,jbripley/RxScala,ReactiveX/RxScala,hermanbanken/RxScala,zjrstar/RxScala,TracyLu/RxScala,joohnnie/RxScala,samuelgruetter/RxScala,hermanbanken/RxScala