Log Message:
py-cffi: updated to 1.11.3

v1.11.3
Fix on CPython 3.x: reading the attributes __loader__ or __spec__ from the \ 
cffi-generated lib modules gave a buggy SystemError. (These attributes are \ 
always None, and provided only to help compatibility with tools that expect them \ 
in all modules.)
More Windows fixes: workaround for MSVC not supporting large literal strings in \ 
C code (from ffi.embedding_init_code(large_string)); and an issue with \ 
Py_LIMITED_API linking with python35.dll/python36.dll instead of python3.dll.
Small documentation improvements.