Adapt to change in pde.ui: plugin icon gif->png (impl & tests)
diff --git a/testplugins/org.eclipse.objectteams.otdt.test.builder/workspace/Trac132a2/plugin.xml b/testplugins/org.eclipse.objectteams.otdt.test.builder/workspace/Trac132a2/plugin.xml
index 51021b1..c9cfe38 100644
--- a/testplugins/org.eclipse.objectteams.otdt.test.builder/workspace/Trac132a2/plugin.xml
+++ b/testplugins/org.eclipse.objectteams.otdt.test.builder/workspace/Trac132a2/plugin.xml
@@ -7,7 +7,7 @@
       <aspectBinding
             icon="platform:/plugin/org.eclipse.objectteams.otdt.ui/icons/ot/calloutbinding_obj.gif">
          <basePlugin
-               icon="platform:/plugin/org.eclipse.pde.ui/icons/obj16/plugin_obj.gif"
+               icon="platform:/plugin/org.eclipse.pde.ui/icons/obj16/plugin_obj.png"
                id="Trac132b">
          </basePlugin>
          <team