README update
Merge pull request #7 from muhammadzaheer/zaheer

README update
Added prediction function and regularization
Merge pull request #8 from muhammadzaheer/zaheer

Added prediction function and regularization
Numerical Gradient Checking
Bug Fixes
Debug package - checkNNGradient.java
Sparse Autoencoder initial
Merge pull request #9 from muhammadzaheer/zaheer

Zaheer
testing git