Fixed few UI tests

- Updated test data and reverting 'token_duration' value to its default
- updated bz-id for remove_template test
- updated bz-id for remove_configtemplate test
- added a 'wait_for_ajax' in config_group test
- added a 'wait_for_ajax' in puppet_classes test
Instead of hard-coding `60` maybe we should read the value before you update it, store it, and then use it to restore it back to its previous state?