Add zh_tw locale file

app/controllers/admin/snippets_controller.rb

@@ -26,7 +26,7 @@ class Admin::SnippetsController < ApplicationController
       end
       
       VALID_LOCALES.each do |locale|
-        @snippet.write_attribute( "content_#{locale}", "<ul>\n#{lis}</ul>" )
+        @snippet.send( :write_attribute, "content_#{locale}", "<ul>\n#{lis}</ul>" )
       end
       
     end

app/views/layouts/admin.html.erb

@@ -15,11 +15,11 @@
 <body>
 <div class="container">
   <div id ="nav" class="span-24">
-    <%= link_to 'Home', root_path %> |
-    <%= link_to 'Pages', admin_pages_path %> |
-    <%= link_to 'Snippet', admin_snippets_path %> |
-    <%= link_to 'Layout', admin_layouts_path %> |
-    <%= link_to 'Announcement', admin_announcements_path %>
+    <%= link_to t(:home, :scope => :admin), root_path %> |
+    <%= link_to t(:page, :scope => :admin), admin_pages_path %> |
+    <%= link_to t(:snippet, :scope => :admin), admin_snippets_path %> |
+    <%= link_to t(:layout, :scope => :admin), admin_layouts_path %> |
+    <%= link_to t(:announcement, :scope => :admin), admin_announcements_path %>
   </div>
   
   <%= yield %>