1) Passing the proxy hostname and port to the underlying socket
and changing all users that appeared in lxr.
2) (psm-glue) registering with the cache manager to allow local loopback so that
psm will work with a proxy.
3) (psm-glue) Storing proxy information in psmSocketInfo.
most reviewed by gagan@netscape.com.
git-svn-id: svn://10.0.0.236/trunk@70532 18797224-902f-48f8-a5cc-f745e15eee43