Skipping 0.4, as it was supposed to be a release with only
the expose() method; and this is a much bigger release.
Changes from 0.3:
- Property access for proxy objects.
- Object publication support.
- Single return values are no longer wrapped in a tuple.
- Reorganization of proxy object code.
- Increase of default timeout from 10ms to 1s.
- Even better help() integration.
- Tutorial.