officially support float for n and total (#802) notebook: use FloatProgress <= IntProgress (#471, #456) allow imprecision (n <= total + epsilon) (#849) fix unicode bar format arguments (#803 -> #851) add contrib submodule (#815) add wrapattr, utils.CallbackIOWrapper, contrib.DummyTqdmFile (#84 -> #844) update tests update documentation tidy automatic snap deployments minor doc update (#854)