Adding covariance regularization to QDA
Update qda.py
Update qda.py
Missed a space!
Updating to ensure pep8 compliaance
reg_param is a float
Update qda.py
Update test_qda.py
Update qda.py
Merge pull request #2142 from sergeyf/master

 Adding covariance regularization to QDA
DOC fix small mistakes
DOC fixed some formatting in kernel approximation
DOC fixed some formatting in the multiclass module