Renamed 'Dart Build' to version, only shown when a VERSION file is found

R=alanknight@google.com

Review URL: https://codereview.chromium.org//184973002
Include contributed print stylesheet

BUG=
R=efortuna@google.com

Review URL: https://codereview.chromium.org//183833013
Add support for previewComment in Typedef

finalized a few properties
better naming of nothing method

R=efortuna@google.com

Review URL: https://codereview.chromium.org//184993010