submitting three iPython files

1. Stock Prediction for next 5 Days_manual split.ipynb
2. ARIMA model for prediction.ipynb
3. StockPrediction_using_sklearn_CV.ipynb

the first two files are actual project work. third file was just for some initial playing around with data and prediction.

capstone proposal Review: https://review.udacity.com/#!/reviews/928412

dataset : S&P 500

Libraries: pandas numpy matplotlib.pylab sklearn.linear_model sklearn.ensemble from statsmodels.tsa.arima_model import ARIMA from statsmodels.tsa.stattools import acf, pacf from statsmodels.tsa.stattools import adfuller