added bug fix for gazebo naming problem
added bug fix for gazebo naming problem

bug referenced in this commit:

https://github.com/BCLab-UNM/SwarmBaseCode-ROS/commit/af66cc4a2503a6b2a27a804fb6f9d592fe6bec75

BCLab-UNM/SwarmBaseCode-ROS,BCLab-UNM/SwarmBaseCode-ROS,BCLab-UNM/SwarmBaseCode-ROS,BCLab-UNM/SwarmBaseCode-ROS,BCLab-UNM/SwarmBaseCode-ROS,BCLab-UNM/SwarmBaseCode-ROS