PolyGerrit: Show create branch or tags as long as you're logged in

This is done in the GWTUI also.

Change-Id: I85241d2e9b7a05bbac9b73108e877dd8139e3c22

polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.html

diff --git a/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.html b/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.html
index e0cada8..7e1fe48 100644
--- a/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.html
+++ b/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.html
@@ -60,7 +60,7 @@
     </style>
     <style include="gr-table-styles"></style>
     <gr-list-view
-        create-new="[[_isOwner]]"
+        create-new="[[_loggedIn]]"
         filter="[[_filter]]"
         items-per-page="[[_itemsPerPage]]"
         items="[[_items]]"

polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.js

diff --git a/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.js b/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.js
index 2989ad0..257be72 100644
--- a/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.js
+++ b/polygerrit-ui/app/elements/admin/gr-project-detail-list/gr-project-detail-list.js
@@ -44,6 +44,10 @@
         type: Boolean,
         value: false,
       },
+      _loggedIn: {
+        type: Boolean,
+        value: false,
+      },
       /**
        * Offset of currently visible query results.
        */
@@ -77,9 +81,7 @@
     ],
 
     _determineIfOwner(project) {
-      return this._getLoggedIn()
-          .then(loggedIn =>
-                loggedIn ? this.$.restAPI.getProjectAccess(project) : null)
+      return this.$.restAPI.getProjectAccess(project)
           .then(access =>
                 this._isOwner = access && access[project].is_owner);
     },
@@ -88,9 +90,15 @@
       if (!params || !params.project) { return; }
 
       this._project = params.project;
-      this.detailType = params.detailType;
 
-      this._determineIfOwner(this._project);
+      this._getLoggedIn().then(loggedIn => {
+        this._loggedIn = loggedIn;
+        if (loggedIn) {
+          this._determineIfOwner(this._project);
+        }
+      });
+
+      this.detailType = params.detailType;
 
       this._filter = this.getFilterValue(params);
       this._offset = this.getOffsetValue(params);