fixed a bug where when you need to run the script again after resolving a merge conflict, it would tag the rollback-to tag incorrectly
changed the default of the tag_cleanup command to not push to origin, you must use the -p or --push options to push your cleanup to origin
prints a more descriptive diff whenever the newly merged live and qa aren't equivalent
does a git fetch at the beginning of release_finish to ensure that all the remote refs are in sync with origin
version 1.6.5