Missing localizations in built Sparkle 1.5b6 /r318

I notice in the source code that there are a LOT of localization ".lproj" folders. However, the actual sparkle project only references about 10 or so of those languages, so the rest of the localizations are not being built.

Is it just that the old languages are out of date? If that is the case, I can offer you localizations based on revision 318 in these languages: da (Danish), zh_TW (Traditional Chinese), zh_CN (simplified Chinese). My app's localizers have done Sparkle as part of their translation, so if you don't have these languages, I hope you can accept these submissions. (Credits are on the folders)

If these translations are indeed up to date, can you include them in the project so they are built?