Merge verify_user_agent branch

diff --cc Changes
index 891b2c8,891b2c8..d69c5c7
--- 1/Changes
--- 2/Changes
+++ b/Changes
@@@ -1,8 -1,8 +1,9 @@@
  Revision history for Perl extension Catalyst::Plugin::Session
  
--        - Add a test case to prove that logging in with a session cookie still causes
--          a new cookie to be issued for you, proving that the code is not vulnerable
--          to a session fixation attack.
++        - Add the verify_user_agent config parameter (kmx)
++        - Add a test case to prove that logging in with a session cookie still 
++          causes a new cookie to be issued for you, proving that the code is
++          not vulnerable to a session fixation attack. (t0m)
  
  0.22 2009-05-13
          - INSANE HACK to ensure B::Hooks::EndOfScope inlines us a new method right now