Changes 0.27:
* Switch to Module::Package at YAPC 2011 ++

Changes 0.26:
* Fixed doc bug reported by KENTNL++
* Tweaked Makefile.PL

Changes 0.25:
* Fixed a bug caused by Readonly::XS (schwern++)
* Removed the new methods and autobox methods.
  They didn't add much except confusion.
* Documented that you can use isTrue and isFalse as methods.
* '&boolean(1,2,3) now dies like boolean(1,2,3)'
* '&boolean() now dies like boolean()'

Changes 0.24:
* '@Schwern++ found out how to make true and false immutable.
  Kudos to #strategicdata++.'
* Document the boolean() function.
* Added is_true and is_false methods.
* Added boolean, is_true, and is_false autobox methods

(adam)