Accept keyword arguments accessing C++ static member functions when
using -builtin and kwargs feature and Python class staticmethod syntax.
The missing keyword argument support was only when using the
class staticmethod syntax, not when using the flat static method
syntax.
The fix is when using kwargs feature or -keyword.
The fix is in the argument error checking when wrapping zero
argument constructors only. Supplied keyword args were silently
ignored.
Issue #1595
