SimPy 2.0 status; work on SimPy for Python 3

All:
on November2, I published SimPy 2.0 beta on SourceForge.net. I hope that
all of you you have already downloaded and tested it. Thanks for your
help!

What is new in SimPy 2.0?
-------------------------
In addition to its existing API, SimPy now also has an
object oriented API.

The additional API

- allows running SimPy in parallel on multiple processors
  or multi-core CPUs, using Parallel Python.
- supports better structuring of SimPy programs,
- allows easy extension of model classes by sub-classing,
  thus providing a capability for developing application
  libraries,
- allows subclassing of class *Simulation* and thus
  provides users with the capability of creating new
  simulation modes/libraries like *SimulationTrace*, and
- reduces the total amount of SimPy code, thereby making
  it easier to maintain.

Note that the OO API is in addition to the old API.
SimPy 2.0 is fully backward compatible.

SimPy's documentation has been restructured and processed
by the Sphinx documentation generation tool. This has
generated one coherent, well structured document which can