don't deploy stunnel ednp_server.conf and epmd_server.conf if node has no cluster neighbors
on a one-node couchdb setup, we don't need both of the bigcouch cluster stunnels which are configured in ednp_server.conf and epmd_server.conf (couch_server.conf is the stunnel for querying couchdb itself).
on panda (unstable.bm), these files are present:
root@panda:~# ls /etc/stunnel/ couch_server.conf ednp_server.conf epmd_server.conf
removing ednp_server.conf and epmd_server.conf, restarting stunnel also gets rid of this annoing log msg:
Mar 3 23:25:10 panda epmd: epmd: got partial packet only on file descriptor 5 (0)
(from redmine: created on 2014-03-03)