I'm sorry, the previous release has bugs. Small errors but unbearable. So this time there are only small improvements.
- added refresh ordinal after plugin install
- added force option to chklevel to bypass admin permission if needed
- fixed a bug in get_language_by_code method
- fixed a bug in different case
- fixed bug in update call and fixed bug in seo form
- improved query string management and added get_query_string method
- added query string management in pagination
- added two new validation checks: grater and less.