Fixed Results.get_fold method.
Widgets with context settings now get properly initialized Context
Widget should not set current_context.

SettingsHandler.open_context does that.
SettingsHandler is set by metaclass so it is reasonable to expect it there.
Set current_context to None when context is closed.
Merge pull request #70 from biolab/fixed_context_settings

Widgets with context settings now get properly initialized Context
Typo.
Rename basket version of iris so it does not override standard iris (4db409e).
Fix for context settings intialization.
Added 'Distributions' widget.
Reenabled Table pickling test by not using metas in checksums.
Use ints for indexing numpy arrays. Floats cause warnings.
Use bool arrays for filtering data.
Typos.
Changed EqualWidth to not split constant variables.
Undid 3884b20b58fc640e193f17bfa3d49c86ef6b7379
Misleading docstring for providing type hints for Settings to PyCharm
Remove printing in unit test.
Changed datasets to new multiclass format.
Improve naive bayes unit test.