Add missing DI annotations and enable strictDi.

This adds missing `@ngInject` annotations to 2 directives and enables
angular's strictDi mode. This patch should fix bulids produced with
`gulp prod` that were unusable due to DI errors.

Change-Id: Ib3c8810c24afb3c859029d2f8eaf9044416b6fa3

app/js/directives/tempest-summary.js

@@ -6,6 +6,10 @@ var directivesModule = require('./_index.js');
  * @ngInject
  */
 function tempestSummary() {
+
+  /**
+   * @ngInject
+   */
   var controller = function($scope, $attrs, datasetService) {
     $scope.$watch('dataset', function(dataset) {
       var stats = dataset.stats;

app/js/directives/timeline-details.js

@@ -6,6 +6,10 @@ var directivesModule = require('./_index.js');
  * @ngInject
  */
 function timelineDetails() {
+
+  /**
+   * @ngInject
+   */
   var controller = function($scope) {
     $scope.item = null;
 

app/js/main.js

@@ -33,4 +33,6 @@ angular.module('app').config(onConfig);
 var onRun = require('./on_run');
 angular.module('app').run(require('./on_run'));
 
-angular.bootstrap(document, ['app']);
+angular.bootstrap(document, ['app'], {
+  strictDi: true
+});