title: depracted map_server warning in launching of move_base node
body: <p>I am using navigation stack, map_server, and amcl stack to perform move_base. Before the trajectory planning, I am doing an open-loop SLAM with hector_slam stack and save the map from map_server with my desired resolution and size. However, I am getting a nasty warning after I call the map service to load this map, namely</p>
  
  <pre><code>Using deprecated map server interface. please switch to new interface.
  </code></pre>
  
  <p>Why am I getting this issue?</p>