Remove use of gazebo_msgs.

lrs_turtle/turtle_connect.py

@@ -134,7 +134,7 @@ class Turtle(Node):
                 um = UpdateModel()
                 um.name = "turtle0"
                 um.frame_id = "world"
-                um.tyoe = "turtle4"
+                um.type = "turtle4"
                 um.x = self.x
                 um.y = self.y
                 um.z = self.z