add lab08 x 2, demo08, dataexplor05 (hw for lec08)
Add in class notes for DataExplor05, Add in Student Loans CLassifier Lab, Add in Iris Classifier Lab
Added in class notes for Dataexplor05
Add Demo for Lec 09 Naive Bayes ROC Curve plotting
Merge pull request #25 from sunwsusan/master

Susan's Dataexplor05 and Bayes Labs Submission