First release 1.1
Release 1.2 - remove blue "something"
Release 1.3 Add facebook box
Release 1.4 Add subcategories for purple category. Intended for adding courses "families".
Release 1.5 Consolidate categories CSS
Release 1.6 Generalise subcategories and show them by parameter "is_subcat"
Release 1.7 Add Newsletter box, e-mail message form and survey, which sotres data in Wordpress.
Release 1.8 Add search box
Release 1.9 Any category can have subcategories