renaming in mailbox service

bramble-core/src/main/java/org/briarproject/bramble/mailbox/MailboxServiceImpl.java

@@ -71,6 +71,8 @@ public class MailboxServiceImpl implements MailboxService {
 		if (LOG.isLoggable(INFO))
 			LOG.info("Starting Mailbox Service");
 
+		//NOTE/TODO: Only using LAN connections for now
+
 		PrivateMailboxFuture =
 				schedule(new ConnectPrivateMailboxTask(LanTcpConstants.ID,
 								POLLING_INTERVALL),
@@ -106,11 +108,10 @@ public class MailboxServiceImpl implements MailboxService {
 		@Override
 		public void run() {
 
-			// NOTE/TODO: This only establishes a Tor connection for now
-			DuplexPlugin torPlugin =
+			DuplexPlugin plugin =
 					(DuplexPlugin) pluginManager.getPlugin(transportId);
 
-			if (torPlugin == null) {
+			if (plugin == null) {
 				reschedule();
 				return;
 			}
@@ -147,7 +148,7 @@ public class MailboxServiceImpl implements MailboxService {
 						LOG.info("Connecting to private mailbox");
 
 					DuplexTransportConnection mailBoxConn =
-							torPlugin.createConnection(entry.getValue());
+							plugin.createConnection(entry.getValue());
 
 					if (mailBoxConn != null)
 						mailboxManager