Instance zip -> zipWith

[benjchristensen]

zip(Iterable<? extends T2>, Func2<? super T, ? super T2, ? extends R>)

should change to

zipWith(Iterable<? extends T2>, Func2<? super T, ? super T2, ? extends R>)

to match

zipWith(Observable<? extends T2>, Func2<? super T, ? super T2, ? extends R>)

[headinthebox]

Yes.