using LiveServerTestCase for the functional tests
added functional tests for separate lists and list url generation
new URL, view and template do display lists, little code refactoring
urls for forms 2x, moved code in views + tests, new URL
added List model, updated tests to reflect this new state
new URL + view for adding tj existing lists, FT passes
refactored urls routing : now configured in the lists app lists/urls.py
refactored superlist/urls.py