[2.1.1pre] Debug logging shown by default in regiond.conf

2016-11-01 15:04:38 [-] b'/etc/resolv.conf' changed, reparsing
2016-11-01 15:04:38 [-] Resolver added ('127.0.1.1', 53) to server list
2016-11-01 15:04:54 [-] b'/etc/resolv.conf' changed, reparsing
2016-11-01 15:04:54 [-] Resolver added ('127.0.1.1', 53) to server list
2016-11-01 15:04:55 [twisted.python.log#info] ::ffff:127.0.0.1 - - [01/Nov/2016:13:04:54 +0000] "GET /MAAS/rpc/ HTTP/1.0" 200 1088 "-" "provisioningserver.rpc.clusterservice.ClusterClientService"
2016-11-01 15:05:07 [-] Active network discovery: Active scanning is not enabled on any subnet. Skipping periodic scan.
2016-11-01 15:05:09 [-] b'/etc/resolv.conf' changed, reparsing
2016-11-01 15:05:09 [-] Resolver added ('127.0.1.1', 53) to server list
2016-11-01 15:05:10 [-] b'/etc/resolv.conf' changed, reparsing
2016-11-01 15:05:10 [-] Resolver added ('127.0.1.1', 53) to server list