[package.xml] Move dynamic_graph to dynamic-graph

package.xml

 <package format="2">
-  <name>dynamic_graph_python</name>
+  <name>dynamic-graph-python</name>
   <version>3.3.2</version>
   <description>
     Dynamic graph library Python bindings
@@ -12,13 +12,13 @@
   <author>Olivier Stasse</author>
 
   <build_depend>roscpp</build_depend>
-  <build_depend>dynamic_graph</build_depend>
+  <build_depend>dynamic-graph</build_depend>
 
   <exec_depend>roscpp</exec_depend>
-  <exec_depend>dynamic_graph</exec_depend>
+  <exec_depend>dynamic-graph</exec_depend>
 
   <build_export_depend>roscpp</build_export_depend>    
-  <build_export_depend>dynamic_graph</build_export_depend>  
+  <build_export_depend>dynamic-graph</build_export_depend>  
   
   <buildtool_depend>catkin</buildtool_depend>