Try to fix tests. Part 2.

Thanks to xet7 !

server/lib/tests/Utils.tests.js

@@ -1,7 +1,7 @@
 /* eslint-env mocha */
 import { Random } from 'meteor/random';
 import { expect } from 'chai';
-import './utils';
+import '../utils';
 
 describe('utils', function() {
   describe(allowIsBoardAdmin.name, function() {

server/lib/tests/index.js

@@ -0,0 +1 @@
+import './Utils.tests';

tests/main.js

@@ -19,7 +19,7 @@
 
 if (Meteor.isServer) {
   describe('server', function() {
-    import '../server/tests/utils.tests';
+    import '../server/lib/tests';
   });
 }