Added more metadata to package.xml.

package.xml

@@ -1,9 +1,23 @@
-<?xml version="1.0"?>
+<?xml version="1.0"?> 
 <package format="2">
+  <!-- This is a Catkin package.xml file to optionally support building DART in
+       a Catkin workspace. Catkin is not required to build DART. For more
+       information, see: http://ros.org/reps/rep-0136.html -->
   <name>dart</name>
   <version>5.0.0</version>
-  <description>Dynamic Animation and Robotics Toolkit</description>
+  <description>
+    DART (Dynamic Animation and Robotics Toolkit) is a collaborative,
+    cross-platform, open source library created by the Georgia Tech Graphics
+    Lab and Humanoid Robotics Lab. The library provides data structures and
+    algorithms for kinematic and dynamic applications in robotics and computer
+    animation.
+  </description>
+  <url type="website">http://dartsim.github.io/</url>
+  <url type="repository">https://github.com/dartsim/dart</url>
+  <url type="bugtracker">https://github.com/dartsim/dart/issues</url>
   <maintainer email="jslee02@gmail.com">Jeongseok Lee</maintainer>
+  <author email="karenliu@cc.gatech.edu">C. Karen Liu</author>
+  <author email="mstilman@cc.gatech.edu">Mike Stilman</author>
   <license>BSD</license>
   <buildtool_depend>cmake</buildtool_depend>
   <buildtool_depend>pkg-config</buildtool_depend>