config.ru in spire-0.1.8 vs config.ru in spire-0.1.9

@@ -1,9 +1,12 @@
 $:.unshift File.join(File.dirname(__FILE__), 'lib')
 
 require 'rack'
 require 'spire'
 
-run Spire::Router.new('./app', {
+path = File.expand_path(__FILE__)
+path["config.ru"] = "app"
+
+run Spire::Router.new(path, {
   "default" => "index#index", # the default route!
   "/index" => "index#index",
 })
\ No newline at end of file