fix bugs for i18n_variable in page and home

app/models/home.rb

@@ -6,5 +6,5 @@ class Home < Page
   def validates_presence_of_parent_id?
     false
   end
-  
+
 end

app/models/item.rb

@@ -60,7 +60,7 @@ class Item
   
   # Check if the page is home
   def is_home?
-    self.name.eql?('home') && self.parent_id.nil?
+    self.name.eql?('home') && (self.parent_id.nil? || self.parent_id.empty?)
   end
   
   # Build the url from the array of ancestors