Adding Sentiment Classifier code, pickle file and train dataset
Merge branch 'master' of github.com:theharshest/machine_learning_5525

Sentiment Classifier code
Merge branch 'master' of github.com:theharshest/machine_learning_5525
Merge branch 'master' of github.com:theharshest/machine_learning_5525
Merge branch 'master' of github.com:theharshest/machine_learning_5525
Merge branch 'master' of github.com:theharshest/machine_learning_5525
Sentiment Classification train data and main classifier code