0.21 Apr 11, 2007
  - have header() return the defined ''.

0.2  Apr 9, 2007
  - add several more methods, especially url(), cookie(), and upload().
  - if the USE_CGI_PM environment variable is set, a CGI.pm object
    will be returned from the new() method (suggested by
     Jonathan Vanasco).
  - drop support of use of the mod_perl2/libapreq2 interface in a
    cgi environment

0.1  Feb 17, 2007
  - initial version