- Update to 2.6.1 bugfix release
* KChart: Honor Orientation when laying out legend items
* KGantt: Use old ForwardingProxyModel when setting new
GraphicsView
* KGantt: Also remove constraints from children of removed row
* Replace constraint if data is not identical
* Fix constraints not always removed
* Don't leak the stacked plotter
* Do not access graphics view after it is deleted
* Avoid crash if leftView() is not a KGanttTreeView
* Don't leak symbols of private classes
* Shorten thick pens lines in legend
* Optimize: do not call potentially detaching QVector::operator()
* New: optional feature to create API dox QCH files during the
build