Log Message:
Update to 1.20:

1.20 -- Sat Dec 12 06:38:14 CST 2009

  * Typo => s/timezome/timezone/ [yanick]
  * RT#52387 Fix %s formating to use timelocal when no timezone is given
  * RT#51664 fix str2time('16 Oct 09') to not give a negative result