Merge pull request #2 from Ayush-Goyal-coding/master

Vectorized implementation of X and Theta gradients

Merge pull request #1 from MHassanNadeem/patch-1

vectorized implementation of predict

blockquoted "Stanford Honor Code"

rename dir names to recognize exercise contents easilly

rm octave-core

ex8 "Anomaly Detection and Recommender Systems" is done and submitted.

put ex8 "Anomaly Detection and Recommender System".

put updated exercise harness "K-means Clustering and PCA" and change imread(..) to load(..)

ex7 "K-means Clustering and PCA" is done and submitted.

put ex7 "K-means Clustering and PCA"

ex6 "Support Vector Machines" is done and submitted.

Merge branch 'master' of https://github.com/everpeace/ml-class-assignments

put ex6 "Support Vector Machines".