put dot-separated params

I2PControl.cpp

@@ -145,6 +145,7 @@ namespace client
 		boost::property_tree::ptree ptr;
 		for (auto& result: results)
 			ptr.put (result.first, result.second);
+		ptr.put (boost::property_tree::ptree::path_type ("xxx.yyy",'/'), "zzz");
 
 		boost::property_tree::ptree pt;
 		pt.put (I2P_CONTROL_PROPERTY_ID, id);