PEP 8 Box plot
Remove printing the results of non-parametric tests which are not implemented in the box plot
Fix bugs in DiscreteVariable.find_compatible
Easier wrapping of scikit-learn methods.
Do not pass Y in one-class svm.
Fix DiscreteVariable.find_compatible not to fail when there are no existing variables with this name
Add tests for DiscreteVariable.make
Added color scale options.
Insure at least some coloring for non zero cells.
Use the actual maximum contingency value for scaling factor.

Before the maximum value in the root was used.
Change sampling options.
Undo change to n_bins.
Merge pull request #145 from ales-erjavec/heatmap

Heatmap color scale
Revert to no outlines.
Add distance measures

Added distance measure Eulidean, Mahalanobis, SpearmanR, SpearmanAbsolute, PearsonR, PearsonRAbsolute
Replaced broken test
Merge pull request #139 from nikicc/distances

Add distance measures
Move sharpen to sampling part of controls.
Show more durations in sampling options.
Option to cache samples.