Implement+use V3Dir flag
Right now clients are checking if dir_port != 0 for the weights in http://archives.seul.org/or/dev/Feb-2010/msg00009.html. We should switch that to V3Dir, because if we make all relays support tunneleddircons without a dirport, we'll want to make sure we still balance among those properly.
[Automatically added by flyspray2trac: Operating System: All]