Fix usage of Rack::File.

Author: ioquatix

example/adapter.rb

@@ -20,13 +20,13 @@ def call(env)
     run SimpleAdapter.new
   end
   map '/files' do
-    run Rack::File.new('.')
+    run Rack::Files.new('.')
   end
 end
 
 # You could also start the server like this:
 #
 #   app = Rack::URLMap.new('/test'  => SimpleAdapter.new,
-#                          '/files' => Rack::File.new('.'))
+#                          '/files' => Rack::Files.new('.'))
 #   Thin::Server.start('0.0.0.0', 3000, app)
 #

lib/rack/adapter/loader.rb

@@ -64,7 +64,7 @@ def self.for(name, options={})
         return Merb::Rack::Application.new
 
       when :file
-        return Rack::File.new(options[:chdir])
+        return Rack::Files.new(options[:chdir])
 
       else
         raise AdapterNotFound, "Adapter not found: #{name}"

lib/rack/adapter/rails.rb

@@ -23,7 +23,7 @@ def initialize(options = {})
         load_application
 
         @rails_app = self.class.rack_based? ? ActionController::Dispatcher.new : CgiApp.new
-        @file_app  = Rack::File.new(::File.join(RAILS_ROOT, "public"))
+        @file_app  = Rack::Files.new(::File.join(RAILS_ROOT, "public"))
       end
 
       def load_application