samples/poppopwin: upgrade to first-class sample

editor/tools/features/com.google.dart.tools.deploy.feature_releng/build_rcp.xml

 <!--
 This build script will build the Dart RCP and Dart update site.
 
 This script will setup the PDE build structure and then call into the PDE
 build system.  The PDE build system has to run under Eclipse.
 -->
 <project name="build_dart" default="build_rcp">
 
     <import file="build-common.xml" />
 
@@ skipping 170 matching lines @@
         <!-- create the samples directory -->
         <property name="samples.out.dir" value="${build.stage.include.dir}/samples" />
 
         <!-- delete old samples -->
         <delete dir="${samples.out.dir}"/>
 
         <!-- copy specific samples -->
         <copy todir="${samples.out.dir}">
             <fileset dir="${build.source.root}/samples">
                 <include name="dartiverse_search/**"/>
-                
                 <include name="sunflower/**"/>
+                <include name="pop_pop_win/**"/>
 
                 <!-- the READMEs are out of date -->
                 <exclude name="**/README"/>
 
                 <!-- the included samples aren't under revision control -->
                 <exclude name="**/.gitignore"/>
 
                 <!-- We do not need to ship the test directories. -->
                 <exclude name="**/test/"/>
             </fileset>
             <fileset dir="${build.source.root}/samples/third_party">
                 <include name="todomvc/**"/>
                 <include name="angular_todo/**"/>
-                <include name="pop-pop-win/**"/>
                 <exclude name="**/tool/"/>
                 <exclude name="**/.git/"/>
                 <exclude name="**/.gitignore"/>
                 <exclude name="**/test/"/>
                 <exclude name="**/app_package/"/>
                 <exclude name="**/resouce/"/>
                
             </fileset>
         </copy>
 
@@ skipping 262 matching lines @@
 }</echo>
     </target>
 
     <!-- - - - - - - - - - - - - - - - - -
           target: doDeploy_rcp
          - - - - - - - - - - - - - - - - - -->
     <target name="doDeploy_rcp" depends="init, setupBuild, doBuild_rcp, package_rcp">
     </target>
 
 </project>