started adding KolmorgorovSmirnoff
Next set of changes to ks
merged in with master
Added Kolmogorov-Smirnov distance function and test
Unreachable code path panic change
Improved comments. Fixed special case documentation of the public comment, and added better documentation to the working
of the algorithm
Merge pull request #10 from gonum/feature-ks

Feature ks
Cleaning up T-Test functions and tests
Merge remote-tracking branch 'upstream/master'