QmlDesigner.PropertyEditor: fix for ComboBox

Change-Id: I766cdf7831509fa7d4e6c6b98f304b814f2f4e76
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
QmlDesigner.PropertyEditor: fix for CheckBox

Change-Id: I8ca2642b50c8f1b529db77ffb4e91f34a0a3b2bf
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
QmlDesigner.PropertyEditor: fixing combo box for font

Change-Id: If1a72549568bfddac3e02151ff9a13be4b578e40
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
QmlDesigner.PropertyEditor: fix combobox for anchor targets

Change-Id: Ib66e19ad2d70cb8c5fd295288a625af06104d40e
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>