shrink pngs
more logos for flight school

BUG=

Review URL: https://chromiumcodereview.appspot.com//109983005
add schema.org to enable the image sharing

BUG=

Review URL: https://chromiumcodereview.appspot.com//121373002
use schema.org for description
dart 1.0 announcement

BUG=

Review URL: https://chromiumcodereview.appspot.com//104013007
Created dart:io examples

R=mcampione@google.com

Review URL: https://chromiumcodereview.appspot.com//110843010
Testing the repo. Codefonting Future.

BUG=
R=mcampione@google.com

Review URL: https://codereview.appspot.com/47200045
add flyers for flight school

BUG=
R=stephaniel@google.com

Review URL: https://chromiumcodereview.appspot.com//123683002