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* python 3.3+ support
* remove dependency on lucenequerybuilder (Robin Edwards)
* py2neo 1.5 compat and deprecations (Robin Edwards)
* JSONProperty (Panos Katseas)
* allow classes in relationship definitions (Robin Edwards)
* add SemiStructuredNode to contrib (Robin Edwards)
* refactor rel manager to use traversals (Robin Edwards)
* allow connect on rel managers of direction either (Robin Edwards)
* added experimental support for traversals (Robin Edwards)
* allow datetime without timezone to be stored (Robin Edwards)
* use cypher for delete (Robin Edwards)
* project logo (Laura Willis)
* _index_name special attribute removed (Robin Edwards)
* connect to sub class is no longer permitted (Robin Edwards)
* removed ReadOnlyNode class (Robin Edwards)