added todt and fromdt so one can use a date range, still supports a single date parameter to fetch only the bookmarks for that day.  NOTE an exception will be thrown if both date-range and single date parameters are passed
added todt and fromdt so one can use a date range, still supports a single date parameter to fetch only the bookmarks for that day.  NOTE an exception will be thrown if both date-range and single date parameters are passed

mudge/python-delicious