Initial commit
Implemented 'auto' pooling function in subsample.m
Minor edit to subsampling function
Implemented back_subsampling for the max pooling, stochastic pooling and auto pooling functions
Add testing datasets and saved CNNs used for checking correctness of forward prop
Working on backprop, added returning of indices in subsample and in randp
Implemented backprop for OLayer
Fixed func for computing cnn size, OLayer has no trainable weights
Implemented dEdW for SLayer with auto pooling function
Minor edits
Merge branch 'master' of https://github.com/yancheva/cnn_autopooling