Version 0.7: 2011-04-12 Alex Stewart <alex@foogod.com>
  * Added support for pickling result objects
  * Added the ability to use a custom regular expression for whitespace-handling
  * Made grammar classes compare equal if they are equivalent.
  * Added a bunch more unit tests
  * Fixed some issues where grammar_whitespace was not being set correctly on
    some constructs.
  * Fixed a bunch of misc whitespace parsing bugs

Version 0.6: 2011-03-04 Alex Stewart <alex@foogod.com>
  * First packaged version
