Show warnings in Test Learners when test data is not used
Scatterplot is now more resizable.
Add error/warning/info bar to widgts
Fix layout in data sampler's options.
Use fixed widget size for data sampler.
Add small bottom layout margin.
Merge pull request #172 from janezd/warning-bar

Warning bar for widgets
Merge pull request #174 from janezd/warning-in-test-learners

Show warnings in Test Learners when test data is not used
Imputing missing values when computing distances
Merge pull request #175 from markotoplak/scatterplot

Scatterplot is now more resizable.
Merge pull request #178 from ales-erjavec/widget-form-layout-changes

Widget layout changes
Data imputation on distances is performed only when needed by Distances widget
Port 'Venn Diagram' widget.
Added Venn Diagram widget icon
Sort by predicted values in Predictions widget
Fixed tree tests using multinomial attributes with scikit-learn methods.
Merge pull request #180 from thocevar/tree

Fixed tree tests using multinomial attributes with scikit-learn methods.
Leave the original data intact when imputing values for distance computation.
TestLearners AUC metric.
Merge pull request #177 from marinkaz/distances

Imputing missing values when computing distances.