Log Message:
Update squid package to squid-2.5.3nb3.

- fix startup script as PR pkg/22502 by Steven M. Bellovin
- includes newer official squid patches except
  squid-2.5.STABLE3-coss-improvements-2.patch (which is broken).

o 2003-07-22 15:22 (Cosmetic)
	statCounter.syscalls.disk counters treated inconsistently

o 2003-07-25 17:25 (Minor)
	Improvements to the (experimental) COSS storage scheme.

o 2003-07-28 09:28 (Minor)
	Blank username logging fix

o 2003-07-29 22:29 (Minor)
	More improvements to the (experimental) COSS storage scheme.

o 2003-08-06 13:06 (Medium)
	assertion failed: http.c:869: "-1 == cfd || FD_SOCKET == \ 
fd_table[cfd].type"

o 2003-08-06 14:06 (Medium)
	assertion failed: client_side.c:1478: "size > 0" when using aufs

o 2003-08-06 14:06 (Minor)
	aufs calculates the number of threads and queue limits wrongly

o 2003-08-10 07:10 (Cosmetic)
	Compile error in auth/digest_auth.c

o 2003-08-10 19:10 (Minor)
	Username not logged into ACCESS.LOG in case of /407

o 2003-08-13 00:13 (Minor)
	ICP dynamic timeout algorithm ignores multicast