Update project authors statements to Dartino

platforms/stm/event_handler_test/src/fletch_entry.cc

-// 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.
 
 #include <stdlib.h>
 
 #include <cmsis_os.h>
 extern "C" {
   #include <lcd_log.h>
 }
 #include <stm32746g_discovery.h>
@@ skipping 111 matching lines @@
   osThreadCreate(osThread(START_FLETCH), NULL);
 
   osThreadDef(PRODUCER, MessageQueueProducer, osPriorityNormal, 0, 2 * 1024);
   osThreadCreate(osThread(PRODUCER), NULL);
 
   // No more to do right now.
   for (;;) {
     osDelay(1);
   }
 }