Move LICENSE, AUTHORS, PATENTS into the dart directory.

AUTHORS

Index: AUTHORS
===================================================================
--- AUTHORS	(revision 32351)
+++ AUTHORS	(working copy)
@@ -1,29 +0,0 @@
-# Below is a list of people and organizations that have contributed
-# to the Dart project. Names should be added to the list like so:
-#
-#   Name/Organization <email address>
-
-Google Inc.
-
-Ola Martin Bini <ola.bini@gmail.com>
-Michael Haubenwallner <michael.haubenwallner@gmail.com>
-Ladislav Thon <ladicek@gmail.com>
-John Evans <prujohn@gmail.com>
-Lajos Koszti <ajnasz@ajnasz.hu>
-Kevin Moore <kevmoo@j832.com>
-Austin Cummings <austincummings95@gmail.com>
-Alexander Aprelev <aprelev@gmail.com>
-Christopher Stone <chris.stone@gmail.com>
-Kevin Kellogg <kelloggk@gmail.com>
-Matthew Butler <butler.matthew@gmail.com>
-Andy Trevorah <a.trevorah@gmail.com>
-Jingwen Ou <jingweno@gmail.com>
-Chris Strom <chris.eee@gmail.com>
-Adam Singer <financeCoding@gmail.com>
-Chris Buckett <chrisbuckett@gmail.com>
-Thiago Farina <tfarina@chromium.org>
-Sami Ylönen <sami.ylonen@gmail.com>
-David Gomez <irisindigo@gmail.com>
-Nikolaus Graf <nik@blossom.io>
-Alexandre Ardhuin <alexandre.ardhuin@gmail.com>
-Victor Berchet <victor.berchet@gmail.com>