Working towards routing support for miti-tenancy

Adding large-grained initialization steps for integration tests
Fixing a collection issue with shell descriptor records and manager
Adding index action to tenants controller

--HG--
branch : dev

src/Orchard.Web/Modules/Orchard.MultiTenancy/Controllers/AdminController.cs

@@ -20,6 +20,10 @@ namespace Orchard.MultiTenancy.Controllers {
         private Localizer T { get; set; }
         public IOrchardServices Services { get; set; }
 
+        public ActionResult Index() {
+            return View("List", new TenantsListViewModel { TenantSettings = _tenantService.GetTenants() });
+        }
+
         public ActionResult List() {
             return View(new TenantsListViewModel { TenantSettings = _tenantService.GetTenants() });
         }