Fix outdated email address

sed to the rescue! I accomplished the goal quite easily with this handy
shell script:

    #!/bin/sh

    script=$(basename $0)
    emails="mdippery@gmail.com mpd@cs.wm.edu mdippery@bucknell.edu"
    canonical_email="michael@monkey-robot.com"

    for email in $emails; do
      for file in $(ack -l $email); do
        if [ $file != $script ]; then
          sed -i '.bak' "s/$email/$canonical_email/" $file
        fi
      done
    done