Update project authors statements to Dartino

WATCHLISTS

-# Copyright (c) 2015, the Fletch project authors.  Please see the AUTHORS file
+# Copyright (c) 2015, the Dartino project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Watchlist rules for the Fletch repository.
 #
 # Refer to documentation at:
 # http://dev.chromium.org/developers/contributing-code/watchlists
 
 {
   'WATCHLIST_DEFINITIONS': {
     'uxreview': {
        'filepath': 'pkg/fletchc/lib/src/messages.dart' \
            '|pkg/fletchc/lib/src/verbs/documentation.dart',
     },
   },
 
   'WATCHLISTS': {
     'uxreview': ['lukechurch@google.com'],
   },
 }