Fixed ticket number in NEWS file
Note than Python 3.3 is supported in install docs
Added forgotten attributes to visit in error
Fixed leak of cancel key on connection.reset()

Moving the final free into the destructor is not necessary but looks
appropriate.
Fixed broken test decorator preventing 3 tests to run
Use wrap to fix names of decorated test methods

Decorators not using wrap() prevent running the test from command line, e.g.
with:

    python tests/__init__.py test_module.TestSuite.test_method
Better use of Py_CLEAR and implicit zeroed-out structures
PyType_GenericAlloc is the default allocator: no need to specify