Fixed maxTimeWindow calculation...  Silly typo.
Fixed maxTimeWindow calculation...  Silly typo.

synaptek/MathFluency,CarnegieLearning/MathFluency,synaptek/MathFluency,CarnegieLearning/MathFluency,CarnegieLearning/MathFluency,CarnegieLearning/MathFluency,synaptek/MathFluency,synaptek/MathFluency