v1.4.0

Add `stripTags` option to model.

Add magic method __set in model to implement strip_tags.
Add `postList` function to controller template.
Add `parent::__construct` to Ertikazos_Seeder class.
Add `make_label` in `make_search_form` function.
Add `hidden-print` CSS and print only the page content.
Add `@media print` to styles.
Add ER_VERSION in footer.

Rewrite `forms` and `rules` methods in model.
Use forms function instead of forms array in all models.
Fix CI_numeric in validation.js
Update .gitignore to ignore uploads folder.
Fix form_validation if rules array is empty.
Fix replacing class_name and app_name in language files.
Fix replacing class_name and app_name in view_list by using str_replace.
Change make_search_form to accept input array as first parameter.
Use short array syntax in most of files.
Use empty instead of isset in make_input helper.
Change Admin application icons.
Fix script tag by adding type="text/javascript"

Remove `$this->rules` array from all models.
Remove useless `$this->permission` from Group_model class.
Remove bootstrap.css.map line from bootstrap.css