add Packnga.

yoshihara haruka · yoshihara haruka · commit 25a6efa1a8e1 · 2011-08-24T14:22:31.000+09:00
diff --git a/Gemfile b/Gemfile
@@ -26,4 +26,5 @@ group :development, :test do
   gem "rake-compiler"
   gem "jeweler"
   gem "yard"
+  gem "packnga"
 end
