Fixing a bug where the completion block is being called too early.
Fixing a bug where the completion block is being called too early.

jesseclay/UICountingLabel,kalsariyac/UICountingLabel,AlexanderMazaletskiy/UICountingLabel,HarrisLee/UICountingLabel,dataxpress/UICountingLabel,flovilmart/UICountingLabel,Bogon/UICountingLabel,ElaWorkshop/UICountingLabel