Added MarqueeLabel 1.2.6, corrects iOS 5.0 compatibility bug in 1.2.5
Added MarqueeLabel 1.2.7
Added MarqueeLabel 1.3.0, adding Appledoc documentation
Merge pull request #6451 from cbpowell/marqueelabel

[Update] MarqueeLabel to 1.2.6, 1.2.7, and 1.3.0