- Thanks to Jens Erat.

- To be more specific, dates were misinterpreted when an input date was could
  be unambiguously parsed as either ISO or dateformat, for example, if the
  dateformat was 'Y-M-D', it matches ISO 'Y-M-DTH:N:S', and the dateformat
  was considered a match which ignored the 'H:N:S', if specified.

- Arguments with spaces like foo:'bar baz' were improperly passed to
  Taskwarrior before.  This only affected bash_tap.sh tests, the Python
  tests have always been handling this properly.

- Thanks to Dirk Deimeke.