Log Message:
Update to 3.03
Update LICENSE

Upstream changes:
2012-04-06  Dave Cross <dave@dave.org.uk>

  * Artistic, Build.PL, COPYING, LICENCE, MANIFEST, lib/WWW/Shorten.pm,
  lib/WWW/Shorten/UserAgent.pm: Licensing clean-up.

  * MANIFEST: Added META.json to MANIFEST.

2012-03-01  Dave Cross <dave@dave.org.uk>

  * lib/WWW/Shorten/UserAgent.pm: Added documentation.

  * MANIFEST, lib/WWW/Shorten/UserAgent.pm, lib/WWW/Shorten/generic.pm: Added a
  WWW::Shorten::UserAgent object which dies if it receives an HTTP error
  response.