Index: config/settings.yml
===================================================================
--- config/settings.yml	(revision 11718)
+++ config/settings.yml	(working copy)
@@ -71,6 +71,7 @@
   default: en
 host_name:
   default: localhost:3000
+  regexp: '^((.*:\/\/)?(www\.)?([\./:@]*)?)'  
 protocol:
   default: http
 feeds_limit:
 

Index: app/models/setting.rb
===================================================================
--- app/models/setting.rb	(revision 11718)
+++ app/models/setting.rb	(working copy)
@@ -94,6 +94,7 @@
     # Unserialize serialized settings
     v = YAML::load(v) if @@available_settings[name]['serialized'] && v.is_a?(String)
     v = v.to_sym if @@available_settings[name]['format'] == 'symbol' && !v.blank?
+    v = v.gsub(/#{@@available_settings[name]['regexp']}/i,'') if !@@available_settings[name]['regexp'].blank? && !v.blank?	
     v
   end