* changed the debug output format so that it now includes the session unique
ID followed by the instance name at the beginning of each line.
* in debug mode, accept now shows the client's IP and port.
* added one 3 small debugging scripts to search and pretty print debug output
* changed the default health check request to "OPTIONS /" instead of
"OPTIONS *" since not all servers implement the later one.
* "option httpchk" now accepts an optional parameter allowing the user to
specify and URI other than '/' during health-checks.
* made Makefile more robust to pcre-config errors
* added 3 new pretty-print scripts : debug2ansi, debug2html and debugfind
* upgraded Formilux package to haproxy-1.1.21-flx.1.pkg
* removed the now obsolete haproxy2html.sh
* add the notion of "backup" servers, which are used only when all other
servers are down.
* make Set-Cookie return "" instead of "(null)" when the server has no
cookie assigned (useful for backup servers).
* "log" now supports an optionnal level name (info, notice, err ...) above
which nothing is sent.
* replaced some strncmp() with memcmp() for better efficiency.
* added "capture cookie" option which logs client and/or server cookies
* cleaned up/down messages and dump servers states upon SIGHUP
* added a redirection feature for errors : "errorloc <errnum> <url>"
* now we won't insist on connecting to a dead server, even with a cookie,
unless option "persist" is specified.
* added HTTP/408 response for client request time-out and HTTP/50[234] for
server reply time-out or errors.
* updates to the examples files
* added a 'do_status' command to the Formilux init script
* fixed stats monitoring, and optimized some tv_* for most common cases.
* replaced temporary 'newhdr' with 'trash' to reduce stack size
* made HTTP errors more HTML-fiendly.
* renamed strlcpy() to strlcpy2() because of a slightly difference between
their behaviour (return value), to avoid confusion.
* restricted HTTP messages to HTTP proxies only
* added a 502 message when the connection has been refused by the server,
to prevent clients from believing this is a zero-byte HTTP 0.9 reply.
* changed 'Cache-control:' from 'no-cache="set-cookie"' to 'private' when
inserting a cookie, because some caches (apache) don't understand it.
* fixed processing of server headers when client is in SHUTR state
* automatically close fd's 0,1 and 2 when going daemon ; setpgrp() after
setpgid()
* updated the Makefile and the Formilux build script
* fixed multi-cookie handling in client request to allow clean deletion
in insert+indirect mode. Now, only the server cookie is deleted and not
all the header. Should now be compliant to RFC2109.
* added a "nocache" option to "cookie" to specify that we explicitly want
to add a "cache-control" header when we add a cookie.
It is also possible to add an "Expires: <old-date>" to keep compatibility
with old/broken caches.
* some doc and examples cleanups
