- Added rate-limited mode to SignalProxy
- Added basic text justification to LabelItem
- ViewBox.addItem now has ignoreBounds option, which causes the item to be ignored when autoscaling
- Added ValueLabel widget
- Fixed some autoscaling bugs
- InfiniteLine fix - no hilight if movable=False
- converted most old-style signals into new-style for PySide compatibility (beware: API changes)
- removed ObjectWorkaround, now just using QGraphicsWidget
- performance enhancements, particularly in ROI.getArrayRegion
- numerous bugfixes