Preserve the options hash when not a params object

Before this change, if the second argument was not a params object,
`options` would be set to false. As a Hash responds to `#to_h` just send
it before the merge no matter what.

Fixes #205

lib/wicked/controller/concerns/path.rb

@@ -20,7 +20,7 @@ def wicked_action
 
 
   def wizard_path(goto_step = nil, options = {})
-    options = options.to_h if options.respond_to?(:permitted?) && options.respond_to?(:to_h)
+    options = options.respond_to?(:to_h) ? options.to_h : options
     options = { :controller => wicked_controller,
                 :action     => 'show',
                 :id         => goto_step || params[:id],