New in Pivy v0.5.0 (so far):
* features:
  - purer and simpler OpenBSD'esque license
  - SIMVoleon support
  - Sc21 support
  - new contributed examples
  - out-of-the-box build support for SoQt on win32
  - autocasting for SoSensor derived nodes
  - Python 2.5 support
  - PyQt4 support
* bugfixes:
  - missing autocast invocation in SoCallbackActionPythonCB() for SoNode param 
  - out parameter handling for SoCallbackAction::getMaterial()
  - proper handling of size[2] == 0 in SbImage::setValue(SbVec3s size,...)
  - callback handling for:
    + SoSensorManager::setChangedCallback()
    + SoSceneManager::setRenderCallback()
  - win32 build system fix: COIN3DDIR environment variable changed to COINDIR
  - pythonic SoFieldContainer::getFieldName() returning a PyString
  - SbMatrix.setValue() works again taking a ((ffff),(ffff),(ffff),(ffff))
  - memleaks

New in Pivy v0.3.0:
* features:
  - SWIG 1.3.25 support
  - pivy installs now as Python package    
  - SoPyScript node
  - numerous new test cases
  - improved basic type support
  - proper operator overloading handling
  - field = assignment operator support
* bugfixes:
  - SoField::get() didn't return a string
  - no working embedded SoQtExaminerViewer example
  - import order of modules should not be significant
  - Mentor examples needs cleanup
  - removal of obsolete wrapping code
  - general code cleanup
  - autocasting of extension nodes to the first available parent node
