Add general options page. Options are working with the following exceptions:

app/l10n_util.cc

Index: app/l10n_util.cc
diff --git a/app/l10n_util.cc b/app/l10n_util.cc
index 1fb06aff8a944bce52139bdd72d06321d50995eb..81fb7f48bdb0042649504fdc655ca50b49558581 100644
--- a/app/l10n_util.cc
+++ b/app/l10n_util.cc
@@ -304,6 +304,11 @@ std::string GetStringUTF8(int message_id) {
   return UTF16ToUTF8(rb.GetLocalizedString(message_id));
 }
 
+string16 GetStringUTF16(int message_id) {
+  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+  return rb.GetLocalizedString(message_id);
+}
+
 static string16 GetStringF(int message_id,
                            const string16& a,
                            const string16& b,