Release Version 1.4

Models

• Changes in NeuralNetwork

• Added DoubleStateActionRewardStateActionNeuralNetwork and DoubleExpectedStateActionRewardStateActionNeuralNetwork

Others

• Moved ExperienceReplay to others

Experience Replays

• Added 2 new experience replays: PrioritizedExperienceReplay and NStepExperienceReplay

• Renamed ExperienceReplay to UniformExperienceReplay