Using a dedicated settings file for the otree core tests. You can run the tests now by calling 'make test' in the otree-core root directory.
Adding otree.widgets module contains all the widgets that are also defined in floppyforms.widgets.
Adding RadioSelectHorizontal widget to otree.widgets
Adding CheckboxSelectMultipleHorizontal widget.
Adding demo project in tests/ directory. You can start the demo server with 'make demo'. It contains a demo page for the RadioSelect, CheckboxSelectMultiple widgets and their horizontal brothers.