Update to 0.25

Upstream changes:
0.25 Mon Mar 04 2013
  - support "HH:MM::SS timezone YYYY/MM/DD"
    - thanks Kevin Zwack

0.24 Mon Nov 26 2012
  - fix removal of 'am' in the german language file when we already know what part is the time part
  - fix removal of 'st' when not preceded by a digit
    - thanks Andreas Koenig rt #81432
  - support "YYYYMMDD timezone"

0.23 Thu Jun 14 2012
  - Fix for MM/YYYY (was always setting the base year)
    - thanks John Marling
  - Support MM/YY if MMYY is given as an option
  - pod cleanup

0.22 Mon Jun 11 2012
  - update GPL in the LICENSE file (apparently the FSF has a new address)
    - thanks ppisar rt #74363
  - update POD to match the license file
    - thanks ppisar rt #74358
  - fix typo for saturday in the german language file
    - thanks TMUELLER rt #77721
  - don't check the language extensions if we don't have any non-digits in the string we are checking (excluding delimiters: \/-.:[space])
  - fix typos in the pod documentation, add a link to the german translations
  - add support and more tests for some time-first formats
  - add support for GMT timezone anywhere in the date/time string

0.21 Sun Jan 01 2012
  - handle mm/yyyy and m/yyyy

0.20 Sun Sep 18 2011
  - case insensitive handling of st|nd|rd|th (3rd and 3RD now work)
    - thanks Brett Carson

0.19 Fri Jan 07 2011
  - support for German (de)
    - thanks Mark Trettin
  - better support for DD MM
  - support for natural dates in all languages (3 years ago)

0.18 Sat Jan 01 2011
  - move a test that was hardcoded to a year to the no_year tests.
    - thanks cpantesters

0.17 Tue Oct 26 2010
  - more formats supported
  - support timezone offsets that are not at the end of the datetime string.
    - they must be 4 digits and begin with a plus or minus
    - thanks snarkyboojum: http://use.perl.org/use.perl.org/_snarkyboojum/journal/40297.html
  - better support for dates like 'December 1st'
  - POD formatting fixes
  - support 'Oct.26, 2010'.
    - thanks Brian Knapp

(wen)