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
Allow arbitrary number of columns in discrete palettes
Changed scikit import in tree module.
Merge branch 'master' into sklfitter

Conflicts:
	Orange/classification/tree.py
Merge pull request #146 from janezd/colorful-widgets

Allow arbitrary number of columns in discrete palettes
Merge pull request #137 from janezd/variable-find-compatible

Fix bugs in DiscreteVariable.find_compatible
Merge pull request #138 from lanzagar/sklfitter

Easier wrapping of scikit-learn methods.
Compute contingencies on sample if table is large.
Use sample if data is large.
Use information box instead of warning.
Hide not implemented filters.
Use values instead of indices when filtering discrete values.
Merge pull request #150 from astaric/fast-contingencies

Fast contingencies
Increase maximum connections in pool.