feat(ViewHelper) pass the prerender option to the renderer

Author: rmosolgo

lib/react/rails/view_helper.rb

@@ -7,8 +7,9 @@ module ViewHelper
       def react_component(name, props = {}, options = {}, &block)
         options = {:tag => options} if options.is_a?(Symbol)
 
-        if options[:prerender]
-          block = Proc.new{ concat React::ServerRendering.render(name, props) }
+        prerender_options = options[:prerender]
+        if prerender_options
+          block = Proc.new{ concat React::ServerRendering.render(name, props.merge(prerender: prerender_options)) }
         end
 
         html_options = options.reverse_merge(:data => {})