Log Message:
Update from version 0.5100 to version 0.5300 (upstream version 0.53)

Pkgsrc changes:
- Adjust dependencies

Upstream changes:
0.53   2009-12-06
- Added Test::Exception to build_requires.

0.52   2009-12-05
- Numeric to ->new() are now all validated to make sure they are
  integers. Previously, things like "month => 11.2" would have been
  allowed. Based on a bug report from Max Kanat-Alexandar. RT #45767.

- Added a warning to the docs suggesting that you cache the locale time zone
  if you need to make many DateTime objects in the local zone. Looking up the
  local zone can be fairly expensive. RT #46753.