Log Message:
Update from to 8.1.0; changes too numerous to list.

pkgsrc changes:
- Move more definitions to Makefile.common, drop some that had default values.

- Depend on py-OpenSSL and py-ZopeInterface.

- Add do-test target.

- Remove patch-aa and install all bin/ script with plain names, not with
  ${PYVERSSUFFIX} appended.  setup.py is now much, much simpler, and rewriting
  the patch would be difficult.  It doesn't matter anyway, as I tried really
  hard to install py-OpenSSL for both python24 and python25 and it just
  doesn't work.