Multi language and side bar update

app/controllers/gridfs_controller.rb

@@ -3,7 +3,7 @@ require 'mongo'
 class GridfsController < ActionController::Metal
   
   def serve
-    gridfs_path = env["PATH_INFO"].gsub("/gridfs/", "").force_encoding("UTF-8")
+    gridfs_path = (params[:path]+'.'+params[:format]).gsub("/gridfs/", "").force_encoding("UTF-8")
     begin
       gridfs_file = Mongo::GridFileSystem.new(Mongoid.database).open(gridfs_path, 'r')
       self.response_body = gridfs_file.read