Fix bug.

app/controllers/announcement_feeds_controller.rb

@@ -149,7 +149,7 @@ class AnnouncementFeedsController < ApplicationController
 				category_ids << cat.id.to_s
 				category_titles << {"title_translations" => cat.title_translations}
 			end
-			a["category"] = {"title_translations" => cat.title_translations}
+			a["category"] = {"title_translations" => (cat.title_translations rescue {})}
 			anns.bulletin_links.each do |bl|
 				b = {}
 				b["url"] = bl.url
@@ -167,7 +167,8 @@ class AnnouncementFeedsController < ApplicationController
 		end
 		{
 			"announcements" => all_anns,
-			"tags" => tag_names
+			"tags" => tag_names,
+			"categories" => category_titles
 		}
 	end
 end