Update project authors statements to Dartino

lib/core/embedded_core.dart

-// 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.md file.
 
 /// The dart:core library for embedded fletch.
 ///
 /// It is imported by default in all libraries.
 ///
 /// It is the same as the mobile fletch core library without the
 /// Regexp and Uri classes.
 library dart.core;
@@ skipping 101 matching lines @@
   /// compute the full match. This is the number of captured groups,
   /// which is also the maximal allowed argument to the [group] method.
   int get groupCount;
 
   /// The string on which this match was computed.
   String get input;
 
   /// The pattern used to search in [input].
   Pattern get pattern;
 }