Merge pull request #845 from JoesCat/master

Inserted ',UTF8IDPB_NOZERO&UTF8IDPB_LIMIT' in wrong spot
Update libspiro and libunicodenames URLs.
Merge pull request #846 from qqroach/master

Update libspiro and libunicodenames URLs.
We don't need to build osx on linux and some inc paths are needed for tests.
Interesting bug which handles a segfault, a key error and tidying up some scaffolding in python.c