message: Fix locales in Unit tests
diff: @@ -674,6 +674,7 @@ QUnit.test("file.cleanButtonCaption localization", (assert) => {
  assert.equal(q.cleanButtonCaption, "Clean");
  survey.locale = "fr";
  assert.equal(q.cleanButtonCaption, "Nettoyer");
  + survey.locale = "";
  });
  QUnit.test("Question File responsive", (assert) => {
  @@ -689,6 +690,7 @@ QUnit.test("Question File responsive", (assert) => {
  };
  var survey = new SurveyModel(json);
  + survey.locale = "";
  var q1: QuestionFileModel = <any>survey.getQuestionByName("image1");
  survey.onUploadFiles.add((survey, options) => {
  