tidy up permissions
I added a new file
added a bunch of new files
visual studio files added
Making Logistic regression build
deleted some files
changed permissions
implemented cost function and derivatives for logistic regression.  Used Eigen matrix library
made changes to the interface for MLData, and made it available through the swig interface
merged changes with old work from 6 months ago
bringin in logistic regression code, visual studio project files, new tests