Log Message:
Update squid 2.5.1STABLE1nb1.

Apply official patches:

    * Small typo in dnsserver error message on DNS overload
    * Filter out unproxyable authentication schemes
    * cachemgr login & password revealed in HTTP server log files
    * make uninstall removes squid.conf
    * Segmentation fault if a external_acl helper exits prematurely
    * Squid rejects GET/HEAD with request entities claimint error 411
    * external_acl.c compilation failure
    * memory leak of acl structures on "squid -k reconfigure"
    * Occasional corruption of objects when using aufs
    * Cachemgr "Total accounted:" memory statistics always report \ 
"-1"
    * WCCP hash assignment can sometimes be missed by the router
    * external_acl helper problem with spaces
    * --enable-async-io or --with-storeio=aufs fails to automatically enable \ 
--with-pthreads
    * "make addlang" fails
    * Specifying LDAP servers last on the command line does not work
    * Referer log not closed on shutdown
    * Many files missing from the contrib directory

But the most recent patch isn't included since it content seems to be
broken.

    * Impossible to define acls with spaces in them