Fix combobox sizing in wxQT (minimal is bigger than normal hint in this case) IMPORTANT: not seting MinSize as semantic seems a bit different with wxWidgets so it causes regressions in wxNotebook
Fix choice best size calculation (it was overriding wxQT hints, specially for default height)
Fix zorder between combo box and static box in controls sample for wxQT (so the combobox can receive events after staticbox is created)