sensors.xacro: independent front/rear laser config file, because is where topic is defined

urdf/include/sensors.xacro

@@ -7,13 +7,14 @@
 
   <xacro:macro name="sensors" params="name parent">
     
-    <xacro:property name="laser_config" value="$(find iri_dabo_gazebo)/config/hokuyo_utm30lx.yaml"/>
+    <xacro:property name="front_laser_config" value="$(find iri_dabo_gazebo)/config/front_hokuyo_utm30lx.yaml"/>
+    <xacro:property name="rear_laser_config"  value="$(find iri_dabo_gazebo)/config/rear_hokuyo_utm30lx.yaml"/>
 
-    <xacro:hokuyo_laser2d name="front" prefix="${name}" parent="${parent}" mesh_resolution="low_res" model="utm30lx" config_file="${laser_config}">
+    <xacro:hokuyo_laser2d name="front" prefix="${name}" parent="${parent}" mesh_resolution="low_res" model="utm30lx" config_file="${front_laser_config}">
       <origin xyz="0.28 0.0 0.15" rpy="0 0 0" />
     </xacro:hokuyo_laser2d>
     
-    <xacro:hokuyo_laser2d name="rear" prefix="${name}" parent="${parent}" mesh_resolution="low_res" model="utm30lx" config_file="${laser_config}">
+    <xacro:hokuyo_laser2d name="rear" prefix="${name}" parent="${parent}" mesh_resolution="low_res" model="utm30lx" config_file="${rear_laser_config}">
       <origin xyz="-0.28 0.0 0.15" rpy="0 0 3.14159" />
     </xacro:hokuyo_laser2d>