• Fix : Less memory is leaked when a wizard is freed during global
  destruction, or when an exception is thrown from a 'free'
  callback.
  
• Fix : [RT #77991] : t/17-ctl.t fails on perl 5.14 and 5.16.
  This was actually an issue with ActivePerl, and this test
  has learned to cope with it.
  Thanks Gisle Aas for reporting.
  
• Tst : t/35-stash.t has been taught about perl 5.17.1.
  
• Doc : Many clarifications.