Update project authors statements to Dartino

pkg/os/lib/net_structs.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.
 
 // Accessor classes to read and write networking related structures.
 
 part of os;
 
 /// The AddrInfo class wraps the native struct `addrinfo`.
 ///
 /// This structure is platform specific (the name and address fields are swapped
@@ skipping 60 matching lines @@
   InternetAddress get address;
   set address(InternetAddress address);
 }
 
 abstract class SockAddrIn6 extends SockAddrIn {
   int get flowId;
   set flowId(int flowId);
   int get scopeId;
   set scopeId(int scopeId);
 }