Add tests for kronecker
Merge pull request #4 from bulk88/master

restore Win32 support
Merge branch 'master' of github.com:danaj/Math-Prime-Util
Add moebius/exp_mangoldt to util.c
Shuffle functions between XS/Util/PP; significant XS changes
Cleanup compiler warnings
Change back to dTHX for now
remove dTHX usage
don't set global SP to itself after vcallsubn

the call_pv will already have moved/set global SP ahead of the PUSHMARK
position, so don't take the number of items put on the stack, then add
items to the mark then assign to global SP