Changes

The code I used to make these pictures is available at: https://github.com/jorendorff/dht

The project contains two complete hash map implementations: OpenTable and CloseTable. A third implementation, DenseTable, is a thin wrapper around the <code>dense_hash_map</code> type from [https://code.google.com/p/sparsehash/ Sparsehash]. The three classes have the same API and were all benchmarked using the same templates (in hashbench.cpp).