Do not overwrite base subLabel properties.  This was causing attributedText to get cleared out.
Do not overwrite base subLabel properties.  This was causing attributedText to get cleared out.

litt1e-p/MarqueeLabel,RacZo/MarqueeLabel,zmcadam/MarqueeLabel,yunzhongyoulong/MarqueeLabel,suchitabohra/MarqueeLabel,cbpowell/MarqueeLabel,KBvsMJ/MarqueeLabel,ByunghooLim/MarqueeLabel,ihello/MarqueeLabel,cbpowell/MarqueeLabel