Log Message:
Update squid package to 2.6.4 (2.6.STABLE4).

Changes to squid-2.6.STABLE4 (Sep 22 2006)

	- Bug #1736: Missing Italian translation of ERR_TOO_BIG error page
	- Windows port enhancement: added native exception handler with signal emulation
	- Fix the %un log_format tag again. Got broken in 2.6.STABLE2
	- Fix Squid crash when using %a in ERR_INVALID_REQ and ERR_INVALID_URL error \ 
messages.
	- Bug #212: variable %i always 0.0.0.0 in many error pages
	- Bug #1708: Ports in ACL accepts characters and out of range
	- Bug #1706: Squid time acl accepts invalid time range.
	- Fix another harmless fake_auth compiler warning on gcc 4.1.1 x86
	- Fix an harmless snmp_core.c compiler warning on gcc 4.1.1 x86
	- Bug #1744: squid-2.6.STABLE3 - fakeauth_auth crashing on certain requests
	- Bug #1746: Harmless off by one overrun in ncsa_auth md5 password validation
	- Bug #1598: start_announce cannot be disabled
	- Periodically flush cache.log to disk when "buffered_logs on" is set
	- Numerous COSS improvements and fixes
	- Windows port: merge of MinGW support
	- Windows port: Merged Windows threads support into aufs
	- Bug #1759: Windows port cachemgr.cgi attempts to write to file system root \ 
directory
	- Numerous portability fixes
	- Various minor statistics cleanup on 64-bit hosts with more than 4GB of memory
	- Bug #1758: HEAD on ftp:// URLs always returned 200 OK.
	- Bug #1760: FTP related memory leak
	- Bug #1770: WCCP2 weighted assignment
	- Bug #1768: Redundant DNS PTR lookups
	- Bug #1696: Add support for wccpv2 mask assignment
	- Bug #1774: ncsa_auth support for cramfs timestamps
	- Bug #1769: near-hit and filedescriptor usage missing in SNMP MIB
	- Bug #1725: cache_peer login=PASS documentation somewhat confusing
	- Bug #1590: Silence those ETag loop warnings
	- Bug #1740: Squid crashes on certain malformed HTTP responses
	- Bug #1699: assertion failed: authenticate.c:836: "auth_user_request != \ 
NULL"
	- Improve error reporting on unexpected CONNECT requests in accelerator mode
	- Cosmetic change to increase cache.log detail level on invalid requests
	- Bug #1229: http_port and other directives accept invalid ports
	- Reject http_port specifications using both transparent and accelerator options
	- Cosmetic cleanup to not dump stacktraces on configuration errors