Update project authors statements to Dartino

tests/cli_tests/debugger_interrupt.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.
 
 // debugger_interrupt in interactive_debugger_tests.dart.
 // Test that we can interrupt the debugger while the program is running.
 
 loop() {
   while (true);
 }
 
 main() {
   loop();
 }