Revised Modelica code and documentation of Python interface.
Merge pull request #90 from lbl-srg/master

update pythonModelica
Update documentation for python interface
Fixed error in documentation.
Merge pull request #91 from lbl-srg/pythonModelica

Updated documentation of Python interface for Windows.
Revised Python documentation
Merge pull request #92 from lbl-srg/master

Merge updated documentation of python interface