Changes for version 0.09
- Pure Perl code. Passes all tests, but 1 to 120x slower. Test suite as a whole is 38x slower.
- Modifications to threading test:
- some machines were failing because they use non-TS rand. Fix by making our own rand.
- Win32 was failing because of unique threading issues. It barfs if you free memory on a different thread than allocated it.
- is_prime could return 1 in some cases. Fixed.