chore(ngdocs): disable lunr search during e2e tests

lunr has been responsible for slowdown in our test suite by adding ~1sec per
end-to-end test.

(this is because it initializes the index when the app starts)

since out test suite primarily tests the examples, it's reasonable do disable
the search as a temporary meansure.

the real fix is to use protractor and extract all of the examples into
standalone apps which can be tested without bootstrapping the whole docs app.

Author: IgorMinar

docs/src/templates/index.html

@@ -20,6 +20,11 @@
     // we can't add css/js the usual way, because some browsers (FF) eagerly prefetch resources
     // before the base attribute is added, causing 404 and terribly slow loading of the docs app.
     (function() {
+      if (window.name.indexOf('NG_DEFER_BOOTSTRAP!') == 0) {
+        //TODO(i): super ugly hack to temporarily speed up our e2e tests until we move to protractor + extracted examples
+        window.RUNNING_IN_NG_TEST_RUNNER = true;
+      }
+
       var indexFile = (location.pathname.match(/\/(index[^\.]*\.html)/) || ['', ''])[1],
           rUrl = /(#!\/|api|guide|misc|tutorial|cookbook|error|index[^\.]*\.html).*$/,
           baseUrl = location.href.replace(rUrl, indexFile),
@@ -50,7 +55,9 @@
       addTag('script', {src: 'components/angular-bootstrap.js' }, sync);
       addTag('script', {src: 'components/angular-bootstrap-prettify.js' }, sync);
       addTag('script', {src: 'components/google-code-prettify.js' }, sync);
-      addTag('script', {src: 'components/' + (debug ? 'lunr.js' : 'lunr.min.js') }, sync);
+      if (!window.RUNNING_IN_NG_TEST_RUNNER) {
+        addTag('script', {src: 'components/' + (debug ? 'lunr.js' : 'lunr.min.js') }, sync);
+      }
       addTag('script', {src: 'components/marked.js' }, sync);
       addTag('script', {src: 'docs-data.js'}, sync);
       addTag('script', {src: 'js/docs.js'}, sync);

docs/src/templates/js/docs.js

@@ -109,6 +109,8 @@ docsApp.controller.DocsNavigationCtrl = ['$scope', '$location', 'docsSearch', fu
 
 docsApp.serviceFactory.lunrSearch = function() {
   return function(properties) {
+    if (window.RUNNING_IN_NG_TEST_RUNNER) return null;
+
     var engine = lunr(properties);
     return {
       store : function(values) {
@@ -122,7 +124,10 @@ docsApp.serviceFactory.lunrSearch = function() {
 };
 
 docsApp.serviceFactory.docsSearch = ['$rootScope','lunrSearch', 'NG_PAGES',
-  function($rootScope, lunrSearch, NG_PAGES) {
+    function($rootScope, lunrSearch, NG_PAGES) {
+  if (window.RUNNING_IN_NG_TEST_RUNNER) {
+    return null;
+  }
 
   var index = lunrSearch(function() {
     this.ref('id');