Doc template change: exclude articles from logic to add "prev/next" nav in training docs.

Change-Id: I384c5c5df053d9e98fa953c2e3998e7c99c08569
diff --git a/tools/droiddoc/templates-sdk/docpage.cs b/tools/droiddoc/templates-sdk/docpage.cs
index 3feb00f..941bddb 100644
--- a/tools/droiddoc/templates-sdk/docpage.cs
+++ b/tools/droiddoc/templates-sdk/docpage.cs
@@ -17,7 +17,7 @@
 ?>class="col-13" id="doc-col"<?cs else 
 ?>class="col-12" id="doc-col"<?cs /if ?> >
 
-<?cs if:(design||training||walkthru) && !page.trainingcourse ?><?cs # header logic for docs that provide previous/next buttons ?>
+<?cs if:(design||training||walkthru) && !page.trainingcourse && !page.article ?><?cs # header logic for docs that provide previous/next buttons ?>
   <?cs if:header.hide ?>
   <?cs else ?>
   <div class="layout-content-row content-header <?cs if:header.justLinks ?>just-links<?cs /if ?>">
@@ -154,7 +154,7 @@
       </div>
       
       <?cs # for training classes, provide a different kind of link when the next page is a different class ?>
-      <?cs if:training ?>
+      <?cs if:training && !page.article ?>
       <div class="layout-content-row content-footer next-class" style="display:none" itemscope itemtype="http://schema.org/SiteNavigationElement">
           <a href="#" class="next-class-link hide">Next class: </a>
       </div>