QmlDesigner.PropertyEditor: Adding toolTip property to Label

Change-Id: Id76fa747abaae30336a4c0e2fa2c6f5279553f15
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
QmlDesigner.PropertyEditor: Adding FlipableSpecifics

Change-Id: I9b036c229d1d0b721d8b08b561edb8e074715ac3
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
QmlDesigner.PropertyEditor: Adding MouseAreaSpecifics

Change-Id: I1bbab5f662788644e7190b0880e434c51a380eeb
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>