Update project authors statements to Dartino

src/vm/priority_heap_test.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 "src/shared/assert.h"
 #include "src/shared/flags.h"
 #include "src/shared/test_case.h"
 
 #include "src/vm/priority_heap.h"
 
 namespace fletch {
@@ skipping 149 matching lines @@
       EXPECT_EQ(10 + i, heap.Minimum().value);
       EXPECT(heap.ContainsValue(10 + i));
       heap.RemoveMinimum();
       EXPECT(!heap.ContainsValue(10 + i));
     }
   }
   EXPECT(heap.IsEmpty());
 }
 
 }  // namespace fletch.