Add support for xdg-open
Adding a page on how to write a transformer.

Merge branch 'master' into transformer-doc

Adding a new page on how to write a transformer.

BUG=
R=kathyw@google.com, rnystrom@google.com

Review URL: https://codereview.appspot.com/68310043
Adding "Pub" to title of the new transformer page.

BUG=

Review URL: https://codereview.appspot.com/69420043
Improve AngularDart code lab link

R=mcampione@google.com

Review URL: https://chromiumcodereview.appspot.com/184873005
fix to JsonCodec constructor

BUG=
R=kathyw@google.com

Review URL: https://chromiumcodereview.appspot.com/183423002
minor changes for feedback and a new link

BUG=
R=kathyw@google.com

Review URL: https://chromiumcodereview.appspot.com/185023002
Merge pull request #297 from vicb/makefile

Add support for xdg-open
Fix link to HTML5Rocks WebSockets article

Was pointing to incorrect article (http://www.html5rocks.com/en/tutorials/file/filesystem/).
Merge pull request #311 from mthjones/fix-ws-article-link

Fix link to HTML5Rocks WebSockets article
Adding a docgen page.

Changing dartdoc pointers to docgen.

Merge branch 'master' into docgen

Merge branch 'master' of https://github.com/dart-lang/dartlang.org

Merge branch 'master' of https://github.com/dart-lang/dartlang.org

Adding "Pub" to title of the new transformer page.

BUG=
R=alanknight@google.com, efortuna@google.com

Review URL: https://codereview.appspot.com/71790043
Adding a new tools page.

BUG=
R=kathyw@google.com, sethladd@google.com

Review URL: https://codereview.appspot.com/69930045
Removing dartdoc docs and redirecting to docgen.

BUG=
R=sethladd@google.com

Review URL: https://codereview.appspot.com/72200043
Fix a pja-reported typo
Update Oilpan link in FAQ
Adding a FAQ about setting proxies behind a firewall.

BUG=
R=nweiz@google.com, pquitslund@google.com

Review URL: https://codereview.appspot.com/72650043
remove old images, replace old logo

BUG=

Review URL: https://chromiumcodereview.appspot.com//192953002
Update spec to 1.2

Review URL: https://chromiumcodereview.appspot.com/192753004
regenerate book (& update build script pubspec.lock)

staged under https://book-dot-dart-lang.appspot.com/docs/dart-up-and-running/

The old dartdoc page (book-dot-dart-lang.appspot.com/docs/dart-up-and-running/contents/ch04-tools-dartdoc.htm, which is not in the book and thus no longer generated) redirects to the new page. The dart2js situation is handled differently... The page itself just links to the new page. Perhaps I should delete the dart2js page too, even though that'd be different from the book?

R=shaza@google.com

Review URL: https://chromiumcodereview.appspot.com/196023006
Comment out link to non-existent isolates doc

BUG= dartbug.com/17380

Review URL: https://chromiumcodereview.appspot.com/198433002
fixed @host bug

BUG=
R=kathyw@google.com

Review URL: https://chromiumcodereview.appspot.com/197753009