Added rebind var in order to replace var for the neural layers, neurons, activation function.
Merge branch 'master' of https://github.com/alekstheod/tnnlib

Conflicts:
	src/NeuralNetwork/NeuralNetwork/LearningAlgorithm/BackPropagation/BPNeuralLayer.h
	src/NeuralNetwork/NeuralNetwork/Perceptron/NeuralLayer/NeuralLayer.h
	src/NeuralNetwork/NeuralNetwork/Perceptron/Perceptron.h
	src/ocr/src/main.cpp

Rebind var for NeuralLayer