By Jonathan Stempel and Jody Godoy NEW YORK (Reuters) -The former New York Times editor who oversaw the 2017 editorial underlying Sarah Palin’s defamation lawsuit against the newspaper on Wednesday denied trying to blame the prominent Republican for the 2011 mass shooting that seriously wounded former U.S. congresswoman Gabrielle Giffords. James Bennet testified that changes he made to a draft of the editorial, which the Times later corrected, were not intended to hold either the former Alaska governor and 2008 Republican U.S. vice presidential candidate or her political action committee respo…