done: working & commented

	new file:   .gitignore
	new file:   hw1_code/faces.mat
	new file:   hw1_code/hw1.m
	new file:   hw1_code/hw1.m~
	new file:   hw1_code/logisticRegressionTrain.m~
	new file:   hw1_code/logisticRegressionTrain_FUOGJUDITH.m
	new file:   hw1_code/logisticRegressionTrain_FUOGJUDITH.m~