remove cache busters, font loads protocol agnostic
copy edits and fixes
Notice when the reader clicks "See code"

R=amjoyce@chromium.org

Review URL: https://chromiumcodereview.appspot.com/70273010
Merge pull request #222 from ocupop/dart-1.0

Fixes and copy edits
Merge branch 'dart-1.0' of github.com:dart-lang/dartlang.org into dart-1