Remove all .admin usage

src/js/main.js

@@ -31,7 +31,7 @@ angular.module('Application').controller('MainController', ['$scope', '$route',
 
     // NOTE: this function is exported and called from the appstore.js
     $scope.updateSubscriptionStatus = function () {
-        if (!Client.getUserInfo().admin) return;
+        if (!Client.getUserInfo().isAtLeastAdmin) return;
 
         Client.getSubscription(function (error, subscription) {
             if (error && error.statusCode === 412) return; // ignore if not yet registered