Rename fletch -> dartino

src/shared/atomic_cpp11.h

 // 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.
 
 #ifndef SRC_SHARED_ATOMIC_CPP11_H_
 #define SRC_SHARED_ATOMIC_CPP11_H_
 
 #ifndef SRC_SHARED_ATOMIC_H_
 #error Do not include atomic_cpp11.h directly; use atomic.h instead.
 #endif
 
 #include <atomic>
 
-namespace fletch {
+namespace dartino {
 
 template <typename T>
 using Atomic = std::atomic<T>;
 
 static const std::memory_order kRelaxed = std::memory_order_relaxed;
 static const std::memory_order kConsume = std::memory_order_consume;
 static const std::memory_order kAcquire = std::memory_order_acquire;
 static const std::memory_order kRelease = std::memory_order_release;
 static const std::memory_order kAcqRel = std::memory_order_acq_rel;
 static const std::memory_order kSeqCst = std::memory_order_seq_cst;
 
-}  // namespace fletch
+}  // namespace dartino
 
 #endif  // SRC_SHARED_ATOMIC_CPP11_H_