fix bugs for i18n_variable in page and home

app/views/admin/homes/_form.html.erb

@@ -9,8 +9,8 @@
 
 <% @site_valid_locales.each do |locale| %>
   <p>
-  <%= label_tag "#{f}[title]", "#{t('admin.title')} #{locale}" %>
-  <%= text_field_tag "#{f}[i18n_variable][#{locale}]", (@i18n_variable[locale] if @i18n_variable), :class => 'text' %>
+  <%= label_tag "home[title]", "#{t('admin.title')} #{locale}" %>
+  <%= text_field_tag "home[i18n_variable][#{locale}]", (@i18n_variable[locale] if @i18n_variable), :class => 'text' %>
   </p>
 <% end %>