PythonQt Code

fixed unicode code and filename support for Python 3

improved completion with jedi by returning correct type and by adding all properties to the class

improved enum generation for decorators
improved sequence conversion callback
added support for inheritance chain of Python classes when deriving from a Qt wrapper

added basic support for QtCore.Signal, QtCore.Property and QtCore.Slot

improved handling of qualified virtual calls

added initial support for passing ownership to C++ and Python using templates as markup

merged various improvements from MeVisLab repository
- support for properties on class wrappers
- support for return type completion on jedi library (using __doc__ of methods)
- auto importing known packages when classname appears on interface
- support of intrusive ref-counting for OpenInventor (and other ref counted libraries)
- and other small details

added support for [] mapping operators

added support for nested classes (only one level)

further PY3K port