fixed a bug where single posts don't have a slug

lib/jekyll-pandoc-multiple-formats/pandoc_file.rb

@@ -46,7 +46,7 @@ module Jekyll
         @title = posts.data['title'] unless title
       end
 
-      @slug  = Utils.slugify(title)
+      @slug = Utils.slugify(@title)
     end
 
     def path

lib/jekyll-pandoc-multiple-formats/version.rb

 module JekyllPandocMultipleFormats
-  VERSION = '0.2.9'
+  VERSION = '0.2.9.1'
 end