- update to 1.0.13:
* Fix ZeroDivisionError with ``* * R/0 * *``
* Add support for hashed/random/keyword expressions
* Review support support for hashed/random/keyword expression and add expanders reactor
* fix bug: bad case:``0 6 30 3 *``
* Create ``CroniterUnsupportedSyntaxError`` exception for situations where CRON syntax may be valid but some combinations of features is not supported.
This *may* impact existing cron expressions in prior releases, because ``0 0 * * 15,sat#1`` was previously allowed but incorrectly handled.
* Update ``croniter_range()`` to allow an alternate ``croniter`` class to be used. Helpful when using a custom class derived from croniter.
* Remove external library ``natsort``.