[companion-integrate] RTI - Update of SFWsquid Package

[Steven M. Christensen]

This is a RTI for the update of the Companion SFWsquid package from 
version 2.5.STABLE7 to version 2.6.STABLE18.  The webrev is at

http://companion.sunfreeware.com/downloads/squidwebrev/

This has been reviewed and approved by Paul Cunningham.

Details -

1.  Source file updated.  .gz compression used since that is what the
     Squid site offers.
2.  METADATA file added
3.  Version numbers updated where needed (called 2.6.18 in pkginfo.tmpl)
4.  Copyright dates changed and SCCS ids removed when required
5.  .SUFFIXES line removed in Makefile.sfw - no longer needed
6.  RunAccel removed in install-sfw and prototype_com - not part of
     2.6.x anymore
7.  cachemgr.conf added in install-sfw and protoytpe_com - new in 2.6.x
8.  location of squidclient and cachemgr.cgi files fixed in install-sfw

A nightly build on NV 81 works and a test pkgadd appears to create a 
working squid system.

Steve Christensen