. Added support for HTTP Cookies

 . Added support for HTTP Cookies
 . Added Cookie documentation
 . Added cgiFree() to free internal datastructures
 . Reorganized internal datastructures
 . Updated Changelog(s)
 . Updated CREDITS, abandoned Mikko's cookie support
 . Extended cgitst to set a cookie and display them
 . Renamed cgiInit() to cgiReadVariables() and added new cgiInit()
 . Modified s_cgi structure to contain cookies as well
 . Easified some ite, jump out of routine faster
 . Added some manpages to new routines