1. Allow overrides (on modern versions of perl) with things in DXVars.pm, such
$clusterport. This is really only of use for people trying to run more than
one instance of DXSpider on the same machine.
+2. Fix who command to make RBN connections as RBN and not USER.
02Jan22=======================================================================
1. Fix dx bug introduced to handle dx by ip <ipaddr> for webclusters.
2. Remove _add_thingy dbg message from general view.