Update project authors statements to Dartino

tests/debugger/string_interpolation_test.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.
 
 class A {
   String toString() => "A";
 }
 
 class B {
   String toString() => "B";
 }
 
 foo() => new A();
 bar() => new B();
 baz(s) => s.length;
 
 main() {
   baz('${foo()} and ${bar()}');
 }