Update package dependencies. World file name as separate argument

launch/sim_sample.launch

@@ -2,7 +2,8 @@
 <launch>
   
   <arg name="ns"    default="ana"/>
-  <arg name="world" default="$(find iri_gazebo_worlds)/worlds/empty.world"/>
+  <arg name="world_name" default="empty"/>
+  <arg name="world"      default="$(find iri_gazebo_worlds)/worlds/$(arg world_name).world"/>
   <arg name="rviz"  default="false"/>
   <arg name="gui"   default="true"/>
 

package.xml

@@ -49,6 +49,7 @@
   <!-- Use doc_depend for packages you need only for building documentation: -->
   <!--   <doc_depend>doxygen</doc_depend> -->
   <buildtool_depend>catkin</buildtool_depend>
+  <exec_depend>iri_ana_description</exec_depend>
   <exec_depend>iri_gazebo_worlds</exec_depend>
   <exec_depend>gazebo_ros</exec_depend>