Merge pull request #11 from fmessmer/fix_license

additional BSD-2-Clause license for aruco detector

package.xml

@@ -10,7 +10,8 @@
   <author>Jan Fischer</author>
   <maintainer email="[email protected]">Richard Bormann</maintainer>
 
-  <license>LGPL</license>
+  <license>BSD-2-Clause</license>  <!-- the vendored aruco detector -->
+  <license>LGPL</license>  <!-- the ROS wrapper -->
   <url>http://ros.org/wiki/cob_fiducials</url>
 
   <buildtool_depend>catkin</buildtool_depend>