react-rails v1.10.0 break server side rendering

[zetachang]

The reason is that it remove the polyfilled window in ExecJS environment[1]. And it turns out our code base reference window in various places.

So while I am fixing on this, by locking the version of react-rails to 1.9.0 will make it work as before.

[1] reactjs/react-rails#615

[zetachang]

The first attempt is by replacing all the references to window as Opal.global bf6fa88

Also, given that React::ServerRendering::SprocketsRenderer already load react-server for us, components.rb might not be a correct place to load reactjs source.

[zetachang]

This is addressed in the latest release (0.11.0).