New _m() gettext wrapper with smart detection of plugin domains. Plugin base class registers your gettext files if present at initialization.

update_pot.sh replaced with update_po_templates.php which can do core, plugins, or all (default).
Top-level Makefile added to build .mo files for plugins as well as core.

As described on list:
http://lists.status.net/pipermail/statusnet-dev/2009-December/002869.html

plugins/FeedSub/feedmunger.php

@@ -212,7 +212,7 @@ class FeedMunger
         // try adding #hashtags from the categories/tags on a post.
         
         // @todo Should we force a language here?
-        $format = dgettext("FeedSubPlugin", 'New post: "%1$s" %2$s');
+        $format = _m('New post: "%1$s" %2$s');
         $title = $entry->title;
         $link = $this->getAltLink($entry);
         $out = sprintf($format, $title, $link);