Unix scoreboard management revamp/cleanup. Including a tweaked

put_scoreboard_info from Harrie Hazewinkel's SNMP patch.  Fix starvation
problem with multiple Listens and a busy socket.  Early versions of this
patch were reviewed by Marc, Ben, Randy and Jim.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78473 13f79535-47bb-0310-9956-ffa450edef68