Store defaults in SettingHandler.
Reset settings.
Refactoring.
Refactoring.
Only reset ordinary settings.
Components should have ControlledAttributes dict.
Fix a bug in reading default settings.
Refactor setting initialization.
OWParallelGraph does not need to extend SettingProvider.
Use scikit-learn's liblinear based logistic regression.
Changed GUI layout for Logistic Regression widget.
Added SVM Classification widget.
Merge.
Removed underscores from meta attributes (name, description...) of
widget.
Changed ValueCallbackCombo's __call__().
Merge branch 'heatmap'
Merge branch 'mosaic'

Conflicts:
	Orange/widgets/visualize/owheatmap.py
Create a column of unknowns for variables without a domain conversion.
Allow arrays with NaN values in the from_numpy constructor.
Raise exception when indexing sql table with row slices.