PyCXX V7.0.1 Released

Version: 7.0.1 (29-Aug-2016)

Add extra methods to Py::String that as needed on Windows to support full unicode range of code points.

On Windows Python defines Py_UNICODE as unsigned short, which is too small to hold all Unicode values.

PyCXX has added to the Py::String API to support creationg from Py_UCS4 strings and converting Py::String() into Py::ucs4string objects.

Fix validate for Bytes to use the correct check function.