Coding elastic net regulation
Continue coding elastic net
Continue coding elastic net
Continue coding elastic net
Continue coding elastic net
Finished coding for elastic Gaussian IGD
Finish coding elastic net for linear models using IGD
Elastic Net: Added argument validation, and support for normalization =
False
Elastic Net: Added short help message for igd
Elastic Net: Started adding documentation
Elastic Net: Continue writing documentation
Elastic Net: Documentation, Prediction function

Documentation is finished.

Move the prediction function from C into Python, so that a universal
interface can be used for all models.
Elastic Net: Corrected small bugs, added iteration_run in the output

iteration_run can help the user to know whether the tolerance criteria
is fullfilled.