Rename fletch -> dartino

src/shared/random.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_RANDOM_H_
 #define SRC_SHARED_RANDOM_H_
 
 #include "src/shared/globals.h"
 
-namespace fletch {
+namespace dartino {
 
 // This class implements Xorshift+
 //
 // It has the following properties:
 //  - it has 128-bit state
 //  - it is guaranteed to cycle through every possible 128-bit state (except 0).
 //  - it doesn't systematically fail the BigCrush tests.
 //  - on Intel hardware it is slightly faster than Xorshift* and LCG generators.
 //  - it doesn't need multiply instructions.  Note that the Cortex M0/M1 has
 //    only 32x32->32 bit multiply, no 32x32->64 bit mul instruction.
@@ skipping 15 matching lines @@
     x ^= y ^ (y >> 26);
     s1_ = x;
     return x + y;
   }
 
  private:
   uint64 s0_;
   uint64 s1_;
 };
 
-}  // namespace fletch
+}  // namespace dartino
 
 #endif  // SRC_SHARED_RANDOM_H_