correct misnamed require statements

spec/javascripts/boards/boards_store_spec.js.es6

@@ -7,7 +7,7 @@
 /* global listObjDuplicate */
 require('../spec_helper');
-require('jquery_ujs');
+require('jquery-ujs');
 window.Cookies = require('vendor/js.cookie');
 require('vue');
 require('vue-resource');

spec/javascripts/boards/issue_spec.js.es6

@@ -3,7 +3,7 @@
 /* global ListIssue */
 require('../spec_helper');
-require('jquery_ujs');
+require('jquery-ujs');
 window.Cookies = require('vendor/js.cookie');
 require('vue');
 require('vue-resource');

spec/javascripts/boards/list_spec.js.es6

@@ -6,7 +6,7 @@
 /* global listObj */
 require('../spec_helper');
-require('jquery_ujs');
+require('jquery-ujs');
 window.Cookies = require('vendor/js.cookie');
 require('vue');
 require('vue-resource');

spec/javascripts/environments/environment_item_spec.js.es6

 require('../spec_helper');
 require('vue');
-require('timeago');
+window.timeago = require('vendor/timeago');
 require('environments/components/environment_item');
 describe('Environment item', () => {