refactor(service): Config factory returns a promise

app/components/dashboard/master-ctrl.js

@@ -9,7 +9,7 @@ angular.module('dashboard')
     return window.innerWidth;
   };
 
-  $scope.config = Config.get();
+  $scope.config = Config;
 
   $scope.$watch($scope.getWidth, function(newValue, oldValue) {
     if (newValue >= mobileView) {

app/shared/services.js

@@ -143,7 +143,7 @@ angular.module('dockerui.services', ['ngResource', 'ngSanitize'])
         });
     }])
     .factory('Config', ['$resource', 'CONFIG_ENDPOINT', function($resource, CONFIG_ENDPOINT) {
-      return $resource(CONFIG_ENDPOINT);
+      return $resource(CONFIG_ENDPOINT).get();
     }])
     .factory('Settings', ['DOCKER_ENDPOINT', 'DOCKER_PORT', 'UI_VERSION', function SettingsFactory(DOCKER_ENDPOINT, DOCKER_PORT, UI_VERSION) {
         'use strict';