Cannot install on Xamarin.iOS project?

Hey

How easy is it to fix this incompability package installation ?
https://github.com/fsharp/FSharp.Data/issues/993

Is this repo up-to-date?
Should we just postfix _Xamarin.iOS10_ to the targets in this file https://github.com/advancedrei/Zlib.Portable/blob/master/src/Zlib.Portable.nuspec?
