- change cgi_env from CGI_ENV_MAX+4 to just CGI_ENV_MAX
- update a comment on the fnv1a regarding its status as a public domain
  work, and under no copyright
- in clear_common_env, just wind down the variables
- don't bother with COMMON_CGI_COUNT
- in range.c, use off_t instead of unsigned long
- catch fprintf errors when building cached directory file.
- don't bother to chdir to the directory, use opendir directly
- remove buffer.c:escape_string
- use escape.c:html_escape_string which does HTML escaping not HTTP
  escaping.
- move html_escape_string and http_escape_string from index_dir.c to
  escape.c
- set char *port to const
- introduce a bit more error checking in cgi.c when lseeking and dup'ing
  the POST file
- fix Larry Doolittle's copyright to read 1996-2005
- abstract -r option as do_chroot
- acquire current UID instead of calling getuid all the time
- expose do_chroot (in boa.c) to config.c as an option, too.