Added Ubuntu platform tags to manifest

git-svn-id: https://code.ros.org/svn/ros-pkg/stacks/laser_pipeline/trunk@29657 eb33c2ac-9c88-4c90-87e0-44a10359b0c3

Author: gerkey

manifest.xml

@@ -18,5 +18,8 @@
     <cpp cflags="-I${prefix}/srv/cpp -I${prefix}/include" />
  </export>
 
+  <platform os="ubuntu" version="9.04"/>
+  <platform os="ubuntu" version="9.10"/>
+  <platform os="ubuntu" version="10.04"/>
 </package>