version bump

ros/package.xml

 <?xml version="1.0"?>
 <package>
   <name>dynamixel_sdk</name>
-  <version>3.4.0</version>
+  <version>3.4.1</version>
   <description>This package is wrapping version of ROBOTIS Dynamxel SDK for ROS. The ROBOTIS Dynamixel SDK, or SDK, is a software development library that provides Dynamixel control functions for packet communication. The API is designed for Dynamixel actuators and Dynamixel-based platforms.</description>
   <license>BSD</license>
-  <author email="zerom@robotis.com">zerom</author>
+  <author email="zerom@robotis.com">Zerom</author>
   <author email="rwjung@robotis.com">Leon</author>
-  <maintainer email="pyo@robotis.com">pyo</maintainer>
+  <maintainer email="pyo@robotis.com">Pyo</maintainer>
   <url type="bugtracker">https://github.com/ROBOTIS-GIT/DynamixelSDK/issues</url>
   <url type="repository">https://github.com/ROBOTIS-GIT/DynamixelSDK</url>
   <url type="website">http://wiki.ros.org/dynamixel_sdk</url>