Replaced import * with explicit imports in owwidget.
New style signals
Code style.
Moved concurrent from orange2.
Added Scorers; untested, does not work yet.
Merge branch 'master' of github.com:biolab/orange3
Remove unused method.
Removed imports of toPyObject.
Do not raise exc_info.
Known_settings is a dict, not a list.
Add missing setting provider tests.
Remove unused method.
Fix a bug in Setting.__str__.
Code style.
Descriptive attribute names in wine dataset.
Refactor setattrdeep
Bugfix.

Why rewrap an already wrapped list? Furthermore, ordinary lists get
wrapped anyway in CallFrontListBox.
Removed redundant code.

Value set is overriden with the same value in connectControl.
Move getdeepattr to gui.
Refactor notify_controllers.