A bit more of xslt
Split libxml ffi imports from lxml functions.
Add basics for relaxng
Enough to import test_objectify.py
PythonElementClassLookup is required during import of test_pyclasslookup.
Another method required by test_classlookup.
All tests module import now
Implement missing functions for html error handler.

This allow all test modules to import and start.
Fix import
Another import fix
Various fixes for test_sax
progress in test_hmlparser: add set_default_parser()
Fix 2 tests in test_htmlparse
Progress. Still segfaults
Really implement ErrorLog.connect()
Fix more tests
Progress.
progress
Add XSLTAccessControl
Various progress