Override ngAnimate, which dies in server context with no $rootElement

lib/ngoverrides.js

@@ -13,6 +13,10 @@ function registerModule(context) {
     // depend on it but it makes no sense to run server-defined routes *on* the server.
     context.module('sdr', []);
 
+    // an app that depends on ngAnimate will fail on the absence of $rootElement in unbootstrapped
+    // server context, and animation is not relevant on the server, so we just override it.
+    context.module('ngAnimate', []);
+
     // we depend on ngRoute here to be sure that, even if the application has provided the "real"
     // ngRoute module, we'll always register after it and get to override $route.
     var module = context.module('angularjs-server', ['ng', 'ngRoute']);