Update from version 0.04 to 0.05.

Pkgsrc changes:
o Update dependencies according to changed requirements.

Upstream changes:

0.05  Sun, 04 Jan 2009 20:46:07 +0100
  * Use Variable::Magic and cast %^H instead Scope::Guard and relying
    on a timely destruction of objects within %^H. This fixes using
    on_scope_end in blocks where string evals are compiled as those
    increment the refcount of objects in %^H on 5.10.

(he)