Merge branch 'stable-2.16' into stable-3.0

* stable-2.16:
  Add a 'banner' extension point
  Add extension point to the footer
  Fix dialog popup when going to /admin/create-project

Change-Id: I6181120b2ca7c2cc60c145d03f84f644cdbb746c

polygerrit-ui/app/elements/core/gr-router/gr-router.js

@@ -1215,7 +1215,7 @@
     _handleCreateProjectRoute(data) {
       // Redirects the legacy route to the new route, which displays the project
       // list with a hash 'create'.
-      this._redirect('/admin/projects#create');
+      this._redirect('/admin/repos#create');
     },
 
     _handleCreateGroupRoute(data) {

polygerrit-ui/app/elements/gr-app.html

@@ -227,12 +227,14 @@ limitations under the License.
         Powered by <a href="https://www.gerritcodereview.com/" rel="noopener"
         target="_blank">Gerrit Code Review</a>
         ([[_version]])
+        <gr-endpoint-decorator name="footer-left"></gr-endpoint-decorator>
       </div>
       <div>
         <a class="feedback"
             href$="[[_feedbackUrl]]"
             rel="noopener" target="_blank">Send feedback</a>
         | Press &ldquo;?&rdquo; for keyboard shortcuts
+        <gr-endpoint-decorator name="footer-right"></gr-endpoint-decorator>
       </div>
     </footer>
     <gr-overlay id="keyboardShortcuts" with-backdrop>