Log Message:
Update squid package to 2.5.2.

pkgsrc change: install some supplemental documents.

Changes to squid-2.5.STABLE2 (Mars 17, 2003):

	- Contrib files added back to the distribution
	- Several compiler warnings fixed when using --disable-ident or
	  --disable-http-violations
	- authentication can now be used in most access controls, but
	  must in most cases first be enforced in http_access to force
	  the user to authenticate.
	- cleanups in the developer bootstrap.sh process when preparing
	  the sources.
	- several squid.conf.default documentation updated to correctly
	  refer to the current names when refering to other directives
	- authenticate_ip_ttl documentation updates
	- several assertion faults and segmentation violations corrected
	- the RunCache/RunAccel and squid.rc scripts updated to refer to
	  the squid binary in sbin rather than the old bin location.
	- squid_ldap_auth command line processing fixes when specifying
	  the LDAP server last on the line instead of -h option
	- aufs data corruption bugfix
	- aufs performance improvement for low traffic systems
	- aufs stability improvements
	- external_acl corrected to properly deal with quoted strings
	- WCCPv1 bugfix to make sure the router accepts the hash assignments
	- "Total accounted memory" now correctly reported in cachemgr
	- several small memory leaks (mostly reconfigure related)
	- new squid.conf option to allow GET/HEAD requests with a request
	  entity
	- "make uninstall" no longer removes squid.conf
	- cachemgr.cgi now uses POST to avoid having the cachemgr password
	  logged in the web server logs
	- authentication schemes which are known to not be proxyable are now
	  filtered out from forwarded server replies to avoid that the clients
	  tries to use such schemes when we know for a fact it won't work
	- spelling corrections in various error messages
	- now possible to define acl values with spaces in them
	  by using the "include file" feature
	- squid_ldap_group updated to 2.10 to fix compilation issues with
	  recent (and older) OpenLDAP libraries and to make the helper deal
	  correctly with true LDAP groups by first looking up the user DN.
	- Some internal code cleanups
	- now verifies that programs etc exists iside the chroot directory
	  when using chroot_dir. No longer neccesary to set up a split view
	  environment where the same paths works both inside the chroot and
	  outside just to convince Squid that the files is actually there..
	- improved memory usage reporting
	- --disable-hostname-checks configure option
	- no longer ignores double dots in host names. Any hostname with
	  double dots is now rejected as invalid.
	- log_mime_hdrs no longer logs garbage if very long headers
	  are seen.
	- 'select_fds_hist' object added to cachemgr 'histogram' output
	- pid file now unlinked when squid has really shut down, not
	  immediately when the shutdown request is received. This allows
	  the pid file to be monitored to determine when Squid has shut down
	  properly
	- correct authentication scheme setups on some platforms or compilers
	- several squid.conf.default documentation updates to remove references
	  to renamed or replaced directives by changing them to their current
	  names.
	- the SSL reverse proxy support updated to allow building with
	  OpenSSL 0.9.7 and and later.
	- Corrected a minor performance problem while processing HEAD replies
	  from various broken web servers not sending a correct HTTP reply
	- time acls can now specify multiple times in the same acl name, like
	  most other acl types.
	- winbind helpers updated to match Samba-2.2.7a and should
	  work with Samba-2.2.6 or later (required). For compability with
	  older Samba versions A new configure option --with-samba-sources=...
	  has been added to allow you to specify which Samba version the
	  helpers should be built for if different than the above versions.
	- Squid MIB definition syntax correction to work better with newer
	  (and older) SNMP tools.
	- Fixed access.log format when logging "error:invalid-HTTP-ident" on
	  requests where parsing the HTTP identifier (HTTP/1.0) failed.
	- "make distclean" no longer removes the icons, this avoids the
	  dependency on "uudecode" to rebuild Squid after "make \ 
distclean"
	- User name returned by external acl lookups (external_acl_type)
	  is now available as "ident" in later acl checks in addition to
	  the logging in access.log.
	- Incorrect behaviour of Digest authentication partly corrected - it
	  will not handle sessions, but will always enforce password
	  correctness.. (patch submitted by Sean Burford).
	- Issue with persistent connections and PUT/POST request corrected