Fixes thaliproject#130: Use IPv6 traffic for Socks Port

Author: sisbell

universal/src/main/java/com/msopentech/thali/toronionproxy/TorConfigBuilder.java

@@ -395,6 +395,10 @@ public TorConfigBuilder socksPort(String socksPort, String isolationFlag) {
         if (!isNullOrEmpty(isolationFlag)) {
             buffer.append(" ").append(isolationFlag);
         }
+        buffer.append(" KeepAliveIsolateSOCKSAuth");
+        buffer.append(" IPv6Traffic");
+        buffer.append(" PreferIPv6");
+
         buffer.append('\n');
         return this;
     }