[Changes for 0.05 - 2005-12-27]
* In nonce generation, use only one round of SHA1 instead of two,
as an extra SHA1 hash doesn't make things any more unpredictable.
[Changes for 0.04 - 2004-07-11]
* Use 4-digit years.
[Changes for 0.03 - 2004-06-02]
* Corrected a mis-assignment on w3cdtf_now.
Reported by: Benjamin Trott
[Changes for 0.01 - 2004-05-16]
* Initial commit of LWP::Authen::Wsse.