Make sure /about and /static are served
Make sure /about and /static are served

App Engine may soon require that static content be declared static in
appengine-web.xml. This change makes sure these directories, which hold
the “Terms of Service” among other things, are properly declared.

Change-Id: Id7409362e96a731cec75bd6cbbe3de376bf2beec

josmas/app-inventor,farxinu/appinventor-sources,halatmit/appinventor-sources,thequixotic/appinventor-sources,mit-dig/punya,mit-cml/appinventor-sources,farxinu/appinventor-sources,Klomi/appinventor-sources,mit-dig/punya,mit-cml/appinventor-sources,RachaelT/appinventor-sources,marksherman/appinventor-sources,marksherman/appinventor-sources,warren922/appinventor-sources,halatmit/appinventor-sources,barreeeiroo/appinventor-sources,jisqyv/appinventor-sources,puravidaapps/appinventor-sources,josmas/app-inventor,barreeeiroo/appinventor-sources,halatmit/appinventor-sources,ewpatton/appinventor-sources,josmas/app-inventor,RachaelT/appinventor-sources,warren922/appinventor-sources,ewpatton/appinventor-sources,afmckinney/appinventor-sources,halatmit/appinventor-sources,barreeeiroo/appinventor-sources,warren922/appinventor-sources,warren922/appinventor-sources,barreeeiroo/appinventor-sources,marksherman/appinventor-sources,CoderDojoLX/appinventor-sources,CoderDojoLX/appinventor-sources,afmckinney/appinventor-sources,farxinu/appinventor-sources,CoderDojoLX/appinventor-sources,jisqyv/appinventor-sources,mit-cml/appinventor-sources,halatmit/appinventor-sources,puravidaapps/appinventor-sources,jisqyv/appinventor-sources,CoderDojoLX/appinventor-sources,barreeeiroo/appinventor-sources,Klomi/appinventor-sources,kkashi01/appinventor-sources,mit-cml/appinventor-sources,farxinu/appinventor-sources,josmas/app-inventor,halatmit/appinventor-sources,mit-dig/punya,afmckinney/appinventor-sources,mit-dig/punya,thequixotic/appinventor-sources,kkashi01/appinventor-sources,marksherman/appinventor-sources,mit-cml/appinventor-sources,mit-cml/appinventor-sources,Klomi/appinventor-sources,puravidaapps/appinventor-sources,warren922/appinventor-sources,josmas/app-inventor,marksherman/appinventor-sources,kkashi01/appinventor-sources,ewpatton/appinventor-sources,thequixotic/appinventor-sources,ewpatton/appinventor-sources,RachaelT/appinventor-sources,Klomi/appinventor-sources,kkashi01/appinventor-sources,afmckinney/appinventor-sources,josmas/app-inventor,ewpatton/appinventor-sources,RachaelT/appinventor-sources,ewpatton/appinventor-sources,puravidaapps/appinventor-sources,jisqyv/appinventor-sources,farxinu/appinventor-sources,kkashi01/appinventor-sources,kkashi01/appinventor-sources,afmckinney/appinventor-sources,mit-dig/punya,jisqyv/appinventor-sources,mit-dig/punya,jisqyv/appinventor-sources,CoderDojoLX/appinventor-sources,marksherman/appinventor-sources,thequixotic/appinventor-sources,mit-dig/punya,puravidaapps/appinventor-sources,Klomi/appinventor-sources,RachaelT/appinventor-sources,thequixotic/appinventor-sources