--------------------------
Initial release as part of the GSDView_ project.
This version only support PyQt4_ and PySide_ and used the Pyside_ API.
.. _PyQt5: http://www.riverbankcomputing.com/software/pyqt/intro
.. _PyQt4: http://www.riverbankcomputing.com/software/pyqt/intro
.. _PySide: http://pyside.org
.. _GSDView: http://gsdview.sourceforge.net