- ROI.movePoint now expects parent coordinates by default
   - Added ROI.getHandles()
   - Renamed MultiLineROI to MultiRectROI
   - Reorganized MultiRectROI, added addSegment and removeSegment methods (thanks Martin!)

   - documentation updates
   - PlotItem informs all items when switching to log mode
   - GradientEditorItem has sigGradientChangeFinished
   - ParameterTree list types check linits on initialization
   - Fixed RuntimeError in TreeWidget.clear()

Reorganized shader programs
Infrastructure updates for OpenGL system

Added function for generating pseudo-scatter plots (points stack in a histogram-like manner)

Documentation updates (linked GLImageItem and Legend item to indexes)

Added GLImageItem and example.

    Fixed exporters to automatically add filename extension.
    Fixed ViewBox 'auto pan' option.
- Other minor edits.

Much more efficient at rapid updates.

bugfix for ViewBox.childrenBounds -- vertical infiniteLines were not being included in autoscale range

Added example scripts used for bundling with py2exe

  - integrated Cristian Gavin's replacement for os.listdir
  - added replacement for os.isdir
Fixed ViewBox generating error messages at shutdown

  - built in Christian Gavin's os.listdir replacement
  - added os.isdir replacement
Fixed ViewBox causing errors at shutdown

Fixed bug in functions.invertQTransform -- incorrectly checked for scipy.weave instead of scipy.linalg

- ConsoleWidget now correctly catches its own exceptions
- Fixed ViewBox auto-scaling bug
- Fixed functions.siEval not parsing units correctly
- Fixed bug caused when opengl GL_VERSION_STR is None

Made scipy optional in functions and ImageItem

Added functions.transformCoordinates() for mapping numpy arrays of coordinates from QTransform and QMatrix4x4

Minor updates:
- fixed SRTTransform3D.matrix()
- ViewBox fix: updateAutoRange leaves unused axes completely unchanged
- documentation updates

made scipy optional in functions and ImageItem

- added ability for ScatterPlotItem to use arbitrary symbol shapes
- added scatter plot speed test for evaluating new methods
- added butterworth notch filter to flowchart library
- fixed bugs with ViewBox trying to close itself after python has started cleaning up
- fixed python 2.6 compatibility bug in PlotCurveItem
- fixed support for list-of-dicts and dict-of-lists input for PlotDataItem
- check to ensure Qt version is >= 4.7
- workaround for numpy segmentation fault
- several other minor updates and documentation changes

Fixed setup.py to automatically search for all sub-packages

 - initialize ImageItem.menu
 - fixed default argument for ROI.getAffineSliceParams(axes)