Update email and user name in the git history

gitemail

git filter-branch -f --commit-filter '
        if [ "$GIT_AUTHOR_EMAIL" = "origin@email.address" -o  "$GIT_AUTHOR_EMAIL" = "origin2@email.address" ];
        then
                GIT_AUTHOR_NAME="User Name";
                GIT_AUTHOR_EMAIL="new@mail.address";
                git commit-tree "$@";
        else
                git commit-tree "$@";
        fi' HEAD

# Reference:
# http://git-scm.com/book/en/Git-Tools-Rewriting-History