invertedAppearance and invertedControls properties for ctkDoubleSlider, ctkDoubleSpinBox and ctkSliderWidget
Merge branch 'slider-inverted-properties'

* slider-inverted-properties:
  invertedAppearance and invertedControls properties for ctkDoubleSlider, ctkDoubleSpinBox and ctkSliderWidget

Conflicts:
  ctkDoubleSpinBox.h
  ctkDoubleSpinBox.cpp
Extend ctkComboBox::ScrollWithNoVScrollBar to QAbstractScrollArea

It would then cover item views such a QTableWidgets.
Merge branch 'ctkcombobox-no-scroll'

* ctkcombobox-no-scroll:
  Extend ctkComboBox::ScrollWithNoVScrollBar to QAbstractScrollArea
Merge branch 'slider-inverted-properties'

* slider-inverted-properties:
  invertedAppearance and invertedControls properties for ctkDoubleSlider, ctkDoubleSpinBox and ctkSliderWidget