Log Message:
Updating time/p5-DateTime-Format-Natural from 0.88 to 0.89

Upstream changes:
0.89  2010-08-05  <schubiger@cpan.org>
 - Merged development version to stable.

0.88_02  2010-07-29  <schubiger@cpan.org>
 - Replace calling of _valid_date() in _count_weekday_variant_month()
   with _check_date(), because errors are handled separate.
 - Use more descriptive variable names in _parse_formatted_ymd().
 - Minor indentation and code tweaks.

0.88_01  2010-07-18  <schubiger@cpan.org>
 - Check if suffixes used for ordinal numbers are suitable.
 - Test that invalid ordinal numbers fail and valid ones succeed.
 - Add a test file for the tests expected to succeed.
 - Verify for parse failures their errors emitted.
 - While processing grammar expressions, save all captured values
   in order to pass the extra ones to the extended checks.
 - Improve whitespace of regular expressions handling durations.