Version 0.8.1 * support HTTP cookies (per session) * bug fix: handle HTTP status code 409 correctly * bug fix: don't upload tasks immediately after import * bug fix: null value check in structured postal address * bug fix: null value check in relations * bug fix: null value check in Events.ORIGINAL_ALL_DAY * bug fix: handle file names that are encoded URLs correctly * library update: use ical4j/2.x instead of 1.x * updated Czech translation (thanks to @svetlemodry)