Remove includecode blocks from guestbook.
Remove includecode blocks from guestbook.

artificechicago/camp2016,jerarl/gcp-appengine-python,thejeshgn/appengine-guestbook-python,dmolson/appengine-guestbook-python,JonGal/appengine-ml-demo,t9nf/appengine-guestbook-python,artificechicago/camp2016,jeffgodwyll/appengine-flask-guestbook,bkeyvani/appengine-guestbook-python,jerarl/gcp-appengine-python,GoogleCloudPlatform/appengine-guestbook-python,adjohnson916/appengine-guestbook-python,wcyuan/weather-mailer,bkeyvani/appengine-guestbook-python,JackConnor/portfolio,adjohnson916/appengine-guestbook-python,wcyuan/weather-mailer,JackConnor/portfolio,ashwini0529/appengine-guestbook-python,Romzz/appengine-guestbook-python,GoogleCloudPlatform/appengine-guestbook-python,Romzz/appengine-guestbook-python,t9nf/appengine-guestbook-python,ashwini0529/appengine-guestbook-python,JonGal/appengine-ml-demo,jeffgodwyll/appengine-flask-guestbook,dmolson/appengine-guestbook-python,thejeshgn/appengine-guestbook-python