good work with this extension,
In this pull request there is a lot of things that you can avoid to merge but I think that the last commit (e67861a) is really important because now it's impossible to save title_tag fields on products and taxon:
title_tag don't have to be attr_accessor or it will impossible to save it.
Trying to make compatible with 0.30.1
Changed form inputs into old style
Sitemap for no-www domain
Fixes bug on attr_accessor attributes.
Had the same problem, thanks!
Taxon name become title_tag if taxon doesn't have a title_tag
product title is product name if title_tag is omitted
updates title for product
removes sitemap resource
it's much better to use a separate extension like: