render :text => "Version mismatch: Provided " + ex.provided.to_s +
", server had: " + ex.latest.to_s, :status => :bad_request
rescue ActiveRecord::RecordNotFound
render :text => "Version mismatch: Provided " + ex.provided.to_s +
", server had: " + ex.latest.to_s, :status => :bad_request
rescue ActiveRecord::RecordNotFound